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20201012097 = 373194324029
BaseRepresentation
bin10010110100000100…
…101111101110000001
31221010211202202000020
4102310010233232001
5312332424341342
613140305444053
71313412525000
oct226404575601
957124682006
1020201012097
118626a43422
123ab9340629
131b9c2277c6
14d98c8cc37
157d37250ec
hex4b412fb81

20201012097 has 64 divisors (see below), whose sum is σ = 33834240000. Its totient is φ = 10681118784.

The previous prime is 20201012077. The next prime is 20201012101. The reversal of 20201012097 is 79021010202.

It is not a de Polignac number, because 20201012097 - 216 = 20200946561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20201012017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 828679 + ... + 852707.

It is an arithmetic number, because the mean of its divisors is an integer number (528660000).

Almost surely, 220201012097 is an apocalyptic number.

It is an amenable number.

20201012097 is a deficient number, since it is larger than the sum of its proper divisors (13633227903).

20201012097 is a wasteful number, since it uses less digits than its factorization.

20201012097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24115 (or 24101 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

Adding to 20201012097 its reverse (79021010202), we get a palindrome (99222022299).

The spelling of 20201012097 in words is "twenty billion, two hundred one million, twelve thousand, ninety-seven".

Divisors: 1 3 7 19 21 43 49 57 129 133 147 301 343 399 817 903 931 1029 2107 2451 2793 5719 6321 6517 14749 17157 19551 24029 40033 44247 72087 120099 168203 280231 456551 504609 840693 1033247 1177421 1369653 3099741 3195857 3532263 7232729 8241947 9587571 19631693 21698187 22370999 24725841 50629103 58895079 67112997 137421851 151887309 156596993 354403721 412265553 469790979 961952957 1063211163 2885858871 6733670699 20201012097