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80474432 = 261578009
BaseRepresentation
bin1001100101111…
…11000101000000
312121102112011112
410302333011000
5131100140212
611552502452
71665010223
oct462770500
9177375145
1080474432
11414756a5
1222b4aa28
131389830c
14a98b5ba
1570e9422
hex4cbf140

80474432 has 28 divisors (see below), whose sum is σ = 160728660. Its totient is φ = 39975936.

The previous prime is 80474417. The next prime is 80474441. The reversal of 80474432 is 23447408.

It can be written as a sum of positive squares in 2 ways, for example, as 37650496 + 42823936 = 6136^2 + 6544^2 .

It is a super-2 number, since 2×804744322 = 12952268411445248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 6044 + ... + 14052.

Almost surely, 280474432 is an apocalyptic number.

It is an amenable number.

80474432 is a deficient number, since it is larger than the sum of its proper divisors (80254228).

80474432 is a wasteful number, since it uses less digits than its factorization.

80474432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8178 (or 8168 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 80474432 is about 8970.7542603730. The cubic root of 80474432 is about 431.7370370378.

The spelling of 80474432 in words is "eighty million, four hundred seventy-four thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 157 314 628 1256 2512 5024 8009 10048 16018 32036 64072 128144 256288 512576 1257413 2514826 5029652 10059304 20118608 40237216 80474432