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13857794001420 = 2235733163879909
BaseRepresentation
bin1100100110101000010011…
…1000111000101000001100
31211001210101111020201212020
43021222010320320220030
53304021230231021140
645250103243010140
72630123024326365
oct311520470705014
954053344221766
1013857794001420
11446306a495126
121679897209950
13796a27340165
1435ca13c80b6c
151907166c76d0
hexc9a84e38a0c

13857794001420 has 48 divisors (see below), whose sum is σ = 39333355041120. Its totient is φ = 3644789654016.

The previous prime is 13857794001383. The next prime is 13857794001431. The reversal of 13857794001420 is 2410049775831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581935575 + ... + 1581944334.

It is an arithmetic number, because the mean of its divisors is an integer number (819444896690).

Almost surely, 213857794001420 is an apocalyptic number.

13857794001420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13857794001420 is an abundant number, since it is smaller than the sum of its proper divisors (25475561039700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13857794001420 is a wasteful number, since it uses less digits than its factorization.

13857794001420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163879994 (or 3163879992 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 13857794001420 in words is "thirteen trillion, eight hundred fifty-seven billion, seven hundred ninety-four million, one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 73 146 219 292 365 438 730 876 1095 1460 2190 4380 3163879909 6327759818 9491639727 12655519636 15819399545 18983279454 31638799090 37966558908 47458198635 63277598180 94916397270 189832794540 230963233357 461926466714 692889700071 923852933428 1154816166785 1385779400142 2309632333570 2771558800284 3464448500355 4619264667140 6928897000710 13857794001420