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15055305420 = 2235280389519
BaseRepresentation
bin11100000010101110…
…11011101011001100
31102212020012202110110
432001113123223030
5221313124233140
610525531240020
71042040661501
oct160127335314
942766182413
1015055305420
116426366881
122b01ba9010
13155c14125c
14a2b6dd4a8
155d1adb380
hex3815dbacc

15055305420 has 48 divisors (see below), whose sum is σ = 42170365440. Its totient is φ = 4013270976.

The previous prime is 15055305407. The next prime is 15055305467. The reversal of 15055305420 is 2450355051.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123421 + ... + 212939.

It is an arithmetic number, because the mean of its divisors is an integer number (878549280).

Almost surely, 215055305420 is an apocalyptic number.

15055305420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15055305420 is an abundant number, since it is smaller than the sum of its proper divisors (27115060020).

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

15055305420 is a wasteful number, since it uses less digits than its factorization.

15055305420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92334 (or 92332 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 15055305420 in words is "fifteen billion, fifty-five million, three hundred five thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2803 5606 8409 11212 14015 16818 28030 33636 42045 56060 84090 89519 168180 179038 268557 358076 447595 537114 895190 1074228 1342785 1790380 2685570 5371140 250921757 501843514 752765271 1003687028 1254608785 1505530542 2509217570 3011061084 3763826355 5018435140 7527652710 15055305420