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8050979540 = 225402548977
BaseRepresentation
bin1110111111110000…
…00011001011010100
3202210002100010200102
413133320003023110
5112442022321130
63410520233232
7403340124362
oct73770031324
922702303612
108050979540
1134616280aa
12168830b818
139b3c82326
14565378632
15321c1a645
hex1dfe032d4

8050979540 has 12 divisors (see below), whose sum is σ = 16907057076. Its totient is φ = 3220391808.

The previous prime is 8050979471. The next prime is 8050979557. The reversal of 8050979540 is 459790508.

It can be written as a sum of positive squares in 2 ways, for example, as 4356528016 + 3694451524 = 66004^2 + 60782^2 .

It is a super-2 number, since 2×80509795402 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 201274469 + ... + 201274508.

It is an arithmetic number, because the mean of its divisors is an integer number (1408921423).

Almost surely, 28050979540 is an apocalyptic number.

It is an amenable number.

8050979540 is an abundant number, since it is smaller than the sum of its proper divisors (8856077536).

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

8050979540 is a wasteful number, since it uses less digits than its factorization.

8050979540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402548986 (or 402548984 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 8050979540 is about 89727.2508215871. The cubic root of 8050979540 is about 2004.2393028069.

The spelling of 8050979540 in words is "eight billion, fifty million, nine hundred seventy-nine thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 402548977 805097954 1610195908 2012744885 4025489770 8050979540