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80624894 = 273117529
BaseRepresentation
bin1001100111000…
…11110011111110
312121201011120012
410303203303332
5131114444034
612000023222
71666205000
oct463436376
9177634505
1080624894
1141568749
1223001b12
131391b94c
14a9ca370
157128cce
hex4ce3cfe

80624894 has 16 divisors (see below), whose sum is σ = 141036000. Its totient is φ = 34553232.

The previous prime is 80624861. The next prime is 80624899. The reversal of 80624894 is 49842608.

It is a super-2 number, since 2×806248942 = 13000747065022472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80624899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58079 + ... + 59450.

It is an arithmetic number, because the mean of its divisors is an integer number (8814750).

Almost surely, 280624894 is an apocalyptic number.

80624894 is a deficient number, since it is larger than the sum of its proper divisors (60411106).

80624894 is a wasteful number, since it uses less digits than its factorization.

80624894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117552 (or 117538 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 80624894 is about 8979.1365954640. The cubic root of 80624894 is about 432.0059405619.

It can be divided in two parts, 80624 and 894, that added together give a palindrome (81518).

The spelling of 80624894 in words is "eighty million, six hundred twenty-four thousand, eight hundred ninety-four".

Divisors: 1 2 7 14 49 98 343 686 117529 235058 822703 1645406 5758921 11517842 40312447 80624894