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142431400100 = 225211379293767
BaseRepresentation
bin1000010010100110010…
…0101011000010100100
3111121122021210210122202
42010221210223002210
54313144414300400
6145233155114032
713201403632223
oct2045144530244
9447567723582
10142431400100
115544a8a3010
122372bba2918
131057b522c92
146c72502cba
153a893eb4d5
hex212992b0a4

142431400100 has 144 divisors (see below), whose sum is σ = 346751556480. Its totient is φ = 50325811200.

The previous prime is 142431400099. The next prime is 142431400103. The reversal of 142431400100 is 1004134241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (142431400103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37808417 + ... + 37812183.

It is an arithmetic number, because the mean of its divisors is an integer number (2407996920).

Almost surely, 2142431400100 is an apocalyptic number.

142431400100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142431400100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173375778240).

142431400100 is an abundant number, since it is smaller than the sum of its proper divisors (204320156380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142431400100 is a wasteful number, since it uses less digits than its factorization.

142431400100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758 (or 4751 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 142431400100 its reverse (1004134241), we get a palindrome (143435534341).

The spelling of 142431400100 in words is "one hundred forty-two billion, four hundred thirty-one million, four hundred thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 37 44 50 55 74 100 110 148 185 220 275 370 407 550 740 814 925 929 1100 1628 1850 1858 2035 3700 3716 3767 4070 4645 7534 8140 9290 10175 10219 15068 18580 18835 20350 20438 23225 34373 37670 40700 40876 41437 46450 51095 68746 75340 82874 92900 94175 102190 137492 139379 165748 171865 188350 204380 207185 255475 278758 343730 376700 378103 414370 510950 557516 687460 696895 756206 828740 859325 1021900 1035925 1393790 1512412 1533169 1718650 1890515 2071850 2787580 3066338 3437300 3484475 3499543 3781030 4143700 6132676 6968950 6999086 7562060 7665845 9452575 13937900 13998172 15331690 17497715 18905150 30663380 34995430 37810300 38329225 38494973 69990860 76658450 76989946 87488575 129483091 153316900 153979892 174977150 192474865 258966182 349954300 384949730 517932364 647415455 769899460 962374325 1294830910 1424314001 1924748650 2589661820 2848628002 3237077275 3849497300 5697256004 6474154550 7121570005 12948309100 14243140010 28486280020 35607850025 71215700050 142431400100