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20213031202 = 27131276591327
BaseRepresentation
bin10010110100110010…
…100110000100100010
31221011200101101010021
4102310302212010202
5312344013444302
613141415224054
71313616634060
oct226462460442
957150341107
1020213031202
118632802571
123b0137802a
131ba18753c0
14d9a6db030
157d47eb437
hex4b4ca6122

20213031202 has 64 divisors (see below), whose sum is σ = 37695651840. Its totient is φ = 7915392576.

The previous prime is 20213031197. The next prime is 20213031203.

20213031202 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (20213031203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15231463 + ... + 15232789.

It is an arithmetic number, because the mean of its divisors is an integer number (588994560).

Almost surely, 220213031202 is an apocalyptic number.

20213031202 is a deficient number, since it is larger than the sum of its proper divisors (17482620638).

20213031202 is a wasteful number, since it uses less digits than its factorization.

20213031202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135.

The product of its (nonzero) digits is 144, while the sum is 16.

It can be divided in two parts, 202130 and 31202, that added together give a palindrome (233332).

The spelling of 20213031202 in words is "twenty billion, two hundred thirteen million, thirty-one thousand, two hundred two".

Divisors: 1 2 7 13 14 26 91 127 182 254 659 889 1318 1327 1651 1778 2654 3302 4613 8567 9226 9289 11557 17134 17251 18578 23114 34502 59969 83693 119938 120757 167386 168529 241514 337058 585851 874493 1088009 1171702 1179703 1748986 2176018 2190877 2359406 4381754 6121451 7616063 11368409 12242902 15232126 15336139 22736818 30672278 79578863 111060611 159157726 222121222 777424277 1443787943 1554848554 2887575886 10106515601 20213031202