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1082154980 = 22554107749
BaseRepresentation
bin100000010000000…
…0101111111100100
32210102021011120002
41000200011333210
54204012424410
6255214200432
735550110534
oct10040057744
92712234502
101082154980
11505937065
122624b3118
131432733ba
14a3a154c4
156500d7a5
hex40805fe4

1082154980 has 12 divisors (see below), whose sum is σ = 2272525500. Its totient is φ = 432861984.

The previous prime is 1082154979. The next prime is 1082155001. The reversal of 1082154980 is 894512801.

It can be written as a sum of positive squares in 2 ways, for example, as 578691136 + 503463844 = 24056^2 + 22438^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27053855 + ... + 27053894.

It is an arithmetic number, because the mean of its divisors is an integer number (189377125).

Almost surely, 21082154980 is an apocalyptic number.

1082154980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1082154980 is an abundant number, since it is smaller than the sum of its proper divisors (1190370520).

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

1082154980 is a wasteful number, since it uses less digits than its factorization.

1082154980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54107758 (or 54107756 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 1082154980 is about 32896.1240878010. The cubic root of 1082154980 is about 1026.6675153663.

The spelling of 1082154980 in words is "one billion, eighty-two million, one hundred fifty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 54107749 108215498 216430996 270538745 541077490 1082154980