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20133031302 = 234124277971
BaseRepresentation
bin10010110000000001…
…011010110110000110
31220222002211221220000
4102300001122312012
5312213024000202
613125440422130
71311625641156
oct226001326606
956862757800
1020133031302
1185a163144a
123a9a617946
131b8b115097
14d8dc34766
157cc79791c
hex4b005ad86

20133031302 has 20 divisors (see below), whose sum is σ = 45112903836. Its totient is φ = 6711010380.

The previous prime is 20133031271. The next prime is 20133031363. The reversal of 20133031302 is 20313033102.

20133031302 is a `hidden beast` number, since 2 + 0 + 1 + 330 + 31 + 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 9 ways as a sum of consecutive naturals, for example, 62138824 + ... + 62139147.

Almost surely, 220133031302 is an apocalyptic number.

20133031302 is an abundant number, since it is smaller than the sum of its proper divisors (24979872534).

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

20133031302 is a wasteful number, since it uses less digits than its factorization.

20133031302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124277985 (or 124277976 counting only the distinct ones).

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

Adding to 20133031302 its reverse (20313033102), we get a palindrome (40446064404).

The spelling of 20133031302 in words is "twenty billion, one hundred thirty-three million, thirty-one thousand, three hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 162 124277971 248555942 372833913 745667826 1118501739 2237003478 3355505217 6711010434 10066515651 20133031302