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1081678512 = 243191186051
BaseRepresentation
bin100000001111001…
…0001101010110000
32210101100221222010
41000132101222300
54203402203022
6255200042520
735543054445
oct10036215260
92711327863
101081678512
11505641092
12262303440
13143137575
14a392d9cc
1564e6750c
hex40791ab0

1081678512 has 40 divisors (see below), whose sum is σ = 2941408960. Its totient is φ = 341582400.

The previous prime is 1081678487. The next prime is 1081678517. The reversal of 1081678512 is 2158761801.

It is not an unprimeable number, because it can be changed into a prime (1081678517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592114 + ... + 593937.

It is an arithmetic number, because the mean of its divisors is an integer number (73535224).

Almost surely, 21081678512 is an apocalyptic number.

1081678512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1081678512 is an abundant number, since it is smaller than the sum of its proper divisors (1859730448).

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

1081678512 is a wasteful number, since it uses less digits than its factorization.

1081678512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186081 (or 1186075 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 39.

The square root of 1081678512 is about 32888.8812822814. The cubic root of 1081678512 is about 1026.5168142074.

It can be divided in two parts, 108 and 1678512, that multiplied together give a square (181279296 = 134642).

The spelling of 1081678512 in words is "one billion, eighty-one million, six hundred seventy-eight thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 1186051 2372102 3558153 4744204 7116306 9488408 14232612 18976816 22534969 28465224 45069938 56930448 67604907 90139876 135209814 180279752 270419628 360559504 540839256 1081678512