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15857314430 = 2530742112269
BaseRepresentation
bin11101100010010101…
…10110101001111110
31111221010100000222212
432301022312221332
5224433433030210
611141301140422
71100646643256
oct166112665176
944833300885
1015857314430
1167a804a041
1230a66ba712
1316593486b9
14aa602c966
1562c20d805
hex3b12b6a7e

15857314430 has 32 divisors (see below), whose sum is σ = 28706499360. Its totient is φ = 6306733440.

The previous prime is 15857314393. The next prime is 15857314433. The reversal of 15857314430 is 3441375851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15857314433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1286336 + ... + 1298604.

It is an arithmetic number, because the mean of its divisors is an integer number (897078105).

Almost surely, 215857314430 is an apocalyptic number.

15857314430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15857314430 is a deficient number, since it is larger than the sum of its proper divisors (12849184930).

15857314430 is a wasteful number, since it uses less digits than its factorization.

15857314430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13004.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 15857314430 in words is "fifteen billion, eight hundred fifty-seven million, three hundred fourteen thousand, four hundred thirty".

Divisors: 1 2 5 10 307 421 614 842 1535 2105 3070 4210 12269 24538 61345 122690 129247 258494 646235 1292470 3766583 5165249 7533166 10330498 18832915 25826245 37665830 51652490 1585731443 3171462886 7928657215 15857314430