Search a number
-
+
142386030 = 23254147821
BaseRepresentation
bin10000111110010…
…10001101101110
3100220220221220200
420133022031232
5242422323110
622043454330
73346155423
oct1037121556
9326827820
10142386030
1173411806
123b8273a6
13236643b7
1414ca5d4a
15c7786c0
hex87ca36e

142386030 has 96 divisors (see below), whose sum is σ = 387773568. Its totient is φ = 36211200.

The previous prime is 142386011. The next prime is 142386043. The reversal of 142386030 is 30683241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 142385985 and 142386003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173020 + ... + 173840.

It is an arithmetic number, because the mean of its divisors is an integer number (4039308).

Almost surely, 2142386030 is an apocalyptic number.

142386030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142386030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193886784).

142386030 is an abundant number, since it is smaller than the sum of its proper divisors (245387538).

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

142386030 is a wasteful number, since it uses less digits than its factorization.

142386030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 142386030 is about 11932.5617534543. The cubic root of 142386030 is about 522.1826770686.

The spelling of 142386030 in words is "one hundred forty-two million, three hundred eighty-six thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 41 45 47 82 90 94 123 141 205 235 246 282 369 410 423 470 615 705 738 821 846 1230 1410 1642 1845 1927 2115 2463 3690 3854 4105 4230 4926 5781 7389 8210 9635 11562 12315 14778 17343 19270 24630 28905 33661 34686 36945 38587 57810 67322 73890 77174 86715 100983 115761 168305 173430 192935 201966 231522 302949 336610 347283 385870 504915 578805 605898 694566 1009830 1157610 1514745 1582067 1736415 3029490 3164134 3472830 4746201 7910335 9492402 14238603 15820670 23731005 28477206 47462010 71193015 142386030