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20013057404157 = 3193743194923869
BaseRepresentation
bin1001000110011101001110…
…01011010110110011111101
32121212020012101021100211010
410203032213023112303331
510110343220143413112
6110321512135345433
74133616135102366
oct443164713266375
977766171240733
1020013057404157
116416543190044
1222b27b8522279
13b222b9533c9c
144d28cc48ab6d
1524a8bb37663c
hex1233a72d6cfd

20013057404157 has 32 divisors (see below), whose sum is σ = 26873342496000. Its totient is φ = 13247688609792.

The previous prime is 20013057404147. The next prime is 20013057404177. The reversal of 20013057404157 is 75140475031002.

It is not a de Polignac number, because 20013057404157 - 220 = 20013056355581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013057404147) 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, 838442019 + ... + 838465887.

It is an arithmetic number, because the mean of its divisors is an integer number (839791953000).

Almost surely, 220013057404157 is an apocalyptic number.

It is an amenable number.

20013057404157 is a deficient number, since it is larger than the sum of its proper divisors (6860285091843).

20013057404157 is a wasteful number, since it uses less digits than its factorization.

20013057404157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26757.

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 20013057404157 in words is "twenty trillion, thirteen billion, fifty-seven million, four hundred four thousand, one hundred fifty-seven".

Divisors: 1 3 193 579 743 1949 2229 5847 23869 71607 143399 376157 430197 1128471 1448107 4344321 4606717 13820151 17734667 46520681 53204001 139562043 279484651 838453953 3422790731 8978491433 10268372193 26935474299 34564865983 103694597949 6671019134719 20013057404157