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30131023302 = 2341811027591
BaseRepresentation
bin11100000011111100…
…101110110111000110
32212202212211120120000
4130003330232313012
5443202020221202
621501512222130
72114450320662
oct340374566706
985685746500
1030131023302
11118621a4856
125a0a99a946
132ac257b593
14165b9d38a2
15bb53aa91c
hex703f2edc6

30131023302 has 40 divisors (see below), whose sum is σ = 67888893072. Its totient is φ = 9988174800.

The previous prime is 30131023271. The next prime is 30131023319. The reversal of 30131023302 is 20332013103.

30131023302 is a `hidden beast` number, since 30 + 1 + 310 + 23 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 484474 + ... + 543117.

Almost surely, 230131023302 is an apocalyptic number.

30131023302 is an abundant number, since it is smaller than the sum of its proper divisors (37757869770).

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

30131023302 is a wasteful number, since it uses less digits than its factorization.

30131023302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027786 (or 1027777 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30131023302 its reverse (20332013103), we get a palindrome (50463036405).

The spelling of 30131023302 in words is "thirty billion, one hundred thirty-one million, twenty-three thousand, three hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 162 181 362 543 1086 1629 3258 4887 9774 14661 29322 1027591 2055182 3082773 6165546 9248319 18496638 27744957 55489914 83234871 166469742 185993971 371987942 557981913 1115963826 1673945739 3347891478 5021837217 10043674434 15065511651 30131023302