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30474743031 = 3217631731531
BaseRepresentation
bin11100011000011011…
…111010110011110111
32220122211121100101100
4130120123322303313
5444403013234111
621555551301143
72126123020215
oct343033726367
986584540340
1030474743031
1111a1921a547
125aa5b1a7b3
132b48846035
141691507cb5
15bd5653756
hex7186facf7

30474743031 has 24 divisors (see below), whose sum is σ = 46617287184. Its totient is φ = 19117774080.

The previous prime is 30474742999. The next prime is 30474743053. The reversal of 30474743031 is 13034747403.

30474743031 is a `hidden beast` number, since 304 + 7 + 47 + 4 + 303 + 1 = 666.

It is not a de Polignac number, because 30474743031 - 25 = 30474742999 is a prime.

It is a super-2 number, since 2×304747430312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30474743731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 950736 + ... + 982266.

It is an arithmetic number, because the mean of its divisors is an integer number (1942386966).

Almost surely, 230474743031 is an apocalyptic number.

30474743031 is a deficient number, since it is larger than the sum of its proper divisors (16142544153).

30474743031 is a wasteful number, since it uses less digits than its factorization.

30474743031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37871 (or 37868 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The spelling of 30474743031 in words is "thirty billion, four hundred seventy-four million, seven hundred forty-three thousand, thirty-one".

Divisors: 1 3 9 17 51 153 6317 18951 31531 56853 94593 107389 283779 322167 536027 966501 1608081 4824243 199181327 597543981 1792631943 3386082559 10158247677 30474743031