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31104233430 = 2351767910279
BaseRepresentation
bin11100111101111101…
…001110111111010110
32222021201002202212120
4130331331032333112
51002200140432210
622142235400410
72150535423204
oct347575167726
988251082776
1031104233430
111221158aa46
1260408b3106
132c1909896a
141710d6a074
15c20a49270
hex73df4efd6

31104233430 has 64 divisors (see below), whose sum is σ = 80221155840. Its totient is φ = 7690028544.

The previous prime is 31104233429. The next prime is 31104233431. The reversal of 31104233430 is 3433240113.

It is an interprime number because it is at equal distance from previous prime (31104233429) and next prime (31104233431).

It is a self number, because there is not a number n which added to its sum of digits gives 31104233430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31104233431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420970 + ... + 489309.

It is an arithmetic number, because the mean of its divisors is an integer number (1253455560).

Almost surely, 231104233430 is an apocalyptic number.

31104233430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31104233430 is an abundant number, since it is smaller than the sum of its proper divisors (49116922410).

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

31104233430 is a wasteful number, since it uses less digits than its factorization.

31104233430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910373.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31104233430 its reverse (3433240113), we get a palindrome (34537473543).

The spelling of 31104233430 in words is "thirty-one billion, one hundred four million, two hundred thirty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 67 85 102 134 170 201 255 335 402 510 670 1005 1139 2010 2278 3417 5695 6834 11390 17085 34170 910279 1820558 2730837 4551395 5461674 9102790 13654185 15474743 27308370 30949486 46424229 60988693 77373715 92848458 121977386 154747430 182966079 232121145 304943465 365932158 464242290 609886930 914830395 1036807781 1829660790 2073615562 3110423343 5184038905 6220846686 10368077810 15552116715 31104233430