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20023100097 = 37111323892791
BaseRepresentation
bin10010101001011110…
…000100001011000001
31220200102222212121220
4102221132010023001
5312001403200342
613110512305253
71306122354060
oct225136041301
956612885556
1020023100097
118545577510
123a69842229
131b71405130
14d7d3ba1d7
157c2cd05ec
hex4a97842c1

20023100097 has 64 divisors (see below), whose sum is σ = 35873402880. Its totient is φ = 9594028800.

The previous prime is 20023100081. The next prime is 20023100131. The reversal of 20023100097 is 79000132002.

It is not a de Polignac number, because 20023100097 - 24 = 20023100081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20023100017) 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, 7172772 + ... + 7175562.

It is an arithmetic number, because the mean of its divisors is an integer number (560521920).

Almost surely, 220023100097 is an apocalyptic number.

It is an amenable number.

20023100097 is a deficient number, since it is larger than the sum of its proper divisors (15850302783).

20023100097 is a wasteful number, since it uses less digits than its factorization.

20023100097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214.

The product of its (nonzero) digits is 756, while the sum is 24.

Adding to 20023100097 its reverse (79000132002), we get a palindrome (99023232099).

The spelling of 20023100097 in words is "twenty billion, twenty-three million, one hundred thousand, ninety-seven".

Divisors: 1 3 7 11 13 21 33 39 77 91 143 231 273 429 1001 2389 2791 3003 7167 8373 16723 19537 26279 30701 31057 36283 50169 58611 78837 92103 93171 108849 183953 214907 217399 253981 341627 399113 551859 644721 652197 761943 1024881 1197339 2391389 2793791 6667699 7174167 8381373 20003097 46673893 73344689 86680087 140021679 220034067 260040261 513412823 606760609 953480957 1540238469 1820281827 2860442871 6674366699 20023100097