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20852968059 = 32711231791117
BaseRepresentation
bin10011011010111011…
…110000101001111011
31222211021112112110100
4103122323300221323
5320201324434214
613325115250443
71335520206150
oct233273605173
958737475410
1020852968059
118930a58600
12405b749a23
131c74314b71
14101b6bc227
15820aa7309
hex4daef0a7b

20852968059 has 144 divisors (see below), whose sum is σ = 39588290560. Its totient is φ = 10341302400.

The previous prime is 20852968051. The next prime is 20852968069. The reversal of 20852968059 is 95086925802.

20852968059 is a `hidden beast` number, since 2 + 0 + 8 + 529 + 68 + 0 + 59 = 666.

It is not a de Polignac number, because 20852968059 - 23 = 20852968051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20852967996 and 20852968014.

It is not an unprimeable number, because it can be changed into a prime (20852968051) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 18668169 + ... + 18669285.

Almost surely, 220852968059 is an apocalyptic number.

20852968059 is a deficient number, since it is larger than the sum of its proper divisors (18735322501).

20852968059 is a wasteful number, since it uses less digits than its factorization.

20852968059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 20852968059 in words is "twenty billion, eight hundred fifty-two million, nine hundred sixty-eight thousand, fifty-nine".

Divisors: 1 3 7 9 11 21 31 33 63 77 79 93 99 121 217 231 237 279 341 363 553 651 693 711 847 869 1023 1089 1117 1659 1953 2387 2449 2541 2607 3069 3351 3751 4977 6083 7161 7347 7623 7819 7821 9559 10053 11253 12287 17143 18249 21483 22041 23457 26257 26939 28677 33759 34627 36861 51429 54747 66913 70371 78771 80817 86009 86031 88243 103881 110583 135157 154287 188573 200739 236313 242389 242451 258027 264729 296329 311643 380897 405471 565719 602217 617701 727167 774081 794187 888987 946099 970673 1142691 1216413 1697157 1853103 2074303 2181501 2666279 2666961 2735533 2838297 2912019 3428073 4189867 5559309 6222909 6794711 7998837 8206599 8514891 8736057 10677403 12569601 18668727 19148731 20384133 23996511 24619797 29329069 30090863 32032209 37708803 57446193 61152399 74741821 87987207 90272589 96096627 172338579 210636041 224225463 263961621 270817767 330999493 631908123 672676389 992998479 1895724369 2316996451 2978995437 6950989353 20852968059