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2879993509164 = 2232174879662981
BaseRepresentation
bin101001111010001100111…
…111010111010100101100
3101012022202200212220012100
4221322030333113110230
5334141211314243124
610043014543535100
7415033631626002
oct51721477272454
911168680786170
102879993509164
11a10442288a32
123a61b3bba490
1317b7751b2305
149d56cb80a72
154edade0a1c9
hex29e8cfd752c

2879993509164 has 72 divisors (see below), whose sum is σ = 7724046683808. Its totient is φ = 901671989760.

The previous prime is 2879993509109. The next prime is 2879993509171. The reversal of 2879993509164 is 4619053999782.

2879993509164 is a `hidden beast` number, since 28 + 7 + 9 + 9 + 93 + 509 + 1 + 6 + 4 = 666.

It is a super-3 number, since 3×28799935091643 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2879993509092 and 2879993509101.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4533447 + ... + 5129534.

It is an arithmetic number, because the mean of its divisors is an integer number (107278426164).

It is a 1-persistent number, because it is pandigital, but 2⋅2879993509164 = 5759987018328 is not.

Almost surely, 22879993509164 is an apocalyptic number.

It is an amenable number.

2879993509164 is an abundant number, since it is smaller than the sum of its proper divisors (4844053174644).

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

2879993509164 is a wasteful number, since it uses less digits than its factorization.

2879993509164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9663495 (or 9663490 counting only the distinct ones).

The product of its (nonzero) digits is 264539520, while the sum is 72.

The spelling of 2879993509164 in words is "two trillion, eight hundred seventy-nine billion, nine hundred ninety-three million, five hundred nine thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 487 612 974 1461 1948 2922 4383 5844 8279 8766 16558 17532 24837 33116 49674 74511 99348 149022 298044 9662981 19325962 28988943 38651924 57977886 86966829 115955772 164270677 173933658 328541354 347867316 492812031 657082708 985624062 1478436093 1971248124 2956872186 4705871747 5913744372 9411743494 14117615241 18823486988 28235230482 42352845723 56470460964 79999819699 84705691446 159999639398 169411382892 239999459097 319999278796 479998918194 719998377291 959997836388 1439996754582 2879993509164