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80077952 = 27625609
BaseRepresentation
bin1001100010111…
…10010010000000
312120200101022002
410301132102000
5130444443302
611540203132
71661436263
oct461362200
9176611262
1080077952
1141224829
12229994a8
1313789a06
14a8c6cda
15706bc02
hex4c5e480

80077952 has 16 divisors (see below), whose sum is σ = 159530550. Its totient is φ = 40038912.

The previous prime is 80077919. The next prime is 80077967. The reversal of 80077952 is 25977008.

It can be written as a sum of positive squares in only one way, i.e., 64899136 + 15178816 = 8056^2 + 3896^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312677 + ... + 312932.

Almost surely, 280077952 is an apocalyptic number.

It is an amenable number.

80077952 is a deficient number, since it is larger than the sum of its proper divisors (79452598).

80077952 is an equidigital number, since it uses as much as digits as its factorization.

80077952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625623 (or 625611 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 80077952 is about 8948.6284982672. The cubic root of 80077952 is about 431.0268446520.

The spelling of 80077952 in words is "eighty million, seventy-seven thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 128 625609 1251218 2502436 5004872 10009744 20019488 40038976 80077952