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80557035 = 3513413113
BaseRepresentation
bin1001100110100…
…11001111101011
312121120201110220
410303103033223
5131110311120
611554341123
71665503106
oct463231753
9177521426
1080557035
1141521769
1222b8a7a3
13138c6ab0
14a9ad73d
157113b40
hex4cd33eb

80557035 has 16 divisors (see below), whose sum is σ = 138806304. Its totient is φ = 39658752.

The previous prime is 80557031. The next prime is 80557051. The reversal of 80557035 is 53075508.

It is not a de Polignac number, because 80557035 - 22 = 80557031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80556987 and 80557005.

It is not an unprimeable number, because it can be changed into a prime (80557031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206362 + ... + 206751.

It is an arithmetic number, because the mean of its divisors is an integer number (8675394).

Almost surely, 280557035 is an apocalyptic number.

80557035 is a deficient number, since it is larger than the sum of its proper divisors (58249269).

80557035 is a wasteful number, since it uses less digits than its factorization.

80557035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413134.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 80557035 is about 8975.3570959600. The cubic root of 80557035 is about 431.8847053862.

The spelling of 80557035 in words is "eighty million, five hundred fifty-seven thousand, thirty-five".

Divisors: 1 3 5 13 15 39 65 195 413113 1239339 2065565 5370469 6196695 16111407 26852345 80557035