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79221213130132 = 221743152891772087
BaseRepresentation
bin10010000000110100100000…
…010001000110110110010100
3101101111110210112221221120201
4102000310200101012312110
540340430021030131012
6440253420051110244
722454354341004623
oct2200644021066624
9341443715857521
1079221213130132
1123273589579057
128a75727ba2384
1335286b3a01168
14157c481aa16ba
15925ad3b43857
hex480d20446d94

79221213130132 has 48 divisors (see below), whose sum is σ = 150215930282880. Its totient is φ = 36411178632192.

The previous prime is 79221213130127. The next prime is 79221213130177. The reversal of 79221213130132 is 23103131212297.

It is a junction number, because it is equal to n+sod(n) for n = 79221213130091 and 79221213130100.

It is a congruent number.

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, 43818993 + ... + 45591079.

It is an arithmetic number, because the mean of its divisors is an integer number (3129498547560).

Almost surely, 279221213130132 is an apocalyptic number.

It is an amenable number.

79221213130132 is a deficient number, since it is larger than the sum of its proper divisors (70994717152748).

79221213130132 is a wasteful number, since it uses less digits than its factorization.

79221213130132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787440 (or 1787438 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 79221213130132 in words is "seventy-nine trillion, two hundred twenty-one billion, two hundred thirteen million, one hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 4 17 34 43 68 86 172 731 1462 2924 15289 30578 61156 259913 519826 657427 1039652 1314854 1772087 2629708 3544174 7088348 11176259 22352518 30125479 44705036 60250958 76199741 120501916 152399482 304798964 1295395597 2590791194 5181582388 27093438143 54186876286 108373752572 460588448431 921176896862 1165017840149 1842353793724 2330035680298 4660071360596 19805303282533 39610606565066 79221213130132