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80527220 = 2258394799
BaseRepresentation
bin1001100110010…
…11111101110100
312121112012120122
410303023331310
5131103332340
611553551112
71665320144
oct463137564
9177465518
1080527220
1141501324
1222b75498
13138b6357
14a9a2924
157109db5
hex4ccbf74

80527220 has 24 divisors (see below), whose sum is σ = 169344000. Its totient is φ = 32165792.

The previous prime is 80527219. The next prime is 80527231. The reversal of 80527220 is 2272508.

It is a self number, because there is not a number n which added to its sum of digits gives 80527220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14381 + ... + 19179.

It is an arithmetic number, because the mean of its divisors is an integer number (7056000).

Almost surely, 280527220 is an apocalyptic number.

It is an amenable number.

80527220 is an abundant number, since it is smaller than the sum of its proper divisors (88816780).

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

80527220 is a wasteful number, since it uses less digits than its factorization.

80527220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647 (or 5645 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 80527220 is about 8973.6960055487. The cubic root of 80527220 is about 431.8314171315.

Adding to 80527220 its reverse (2272508), we get a palindrome (82799728).

The spelling of 80527220 in words is "eighty million, five hundred twenty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 839 1678 3356 4195 4799 8390 9598 16780 19196 23995 47990 95980 4026361 8052722 16105444 20131805 40263610 80527220