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80488656 = 24321673347
BaseRepresentation
bin1001100110000…
…10100011010000
312121110020200100
410303002203100
5131101114111
611553052400
71665066543
oct463024320
9177406610
1080488656
1141485356
1222b57100
13138a1931
14a99285a
1570ed756
hex4cc28d0

80488656 has 60 divisors (see below), whose sum is σ = 226672992. Its totient is φ = 26660928.

The previous prime is 80488651. The next prime is 80488673. The reversal of 80488656 is 65688408.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80488651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22375 + ... + 25721.

Almost surely, 280488656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80488656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113336496).

80488656 is an abundant number, since it is smaller than the sum of its proper divisors (146184336).

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

80488656 is a wasteful number, since it uses less digits than its factorization.

80488656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528 (or 3519 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 80488656 is about 8971.5470237858. The cubic root of 80488656 is about 431.7624723041.

The spelling of 80488656 in words is "eighty million, four hundred eighty-eight thousand, six hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 167 334 501 668 1002 1336 1503 2004 2672 3006 3347 4008 6012 6694 8016 10041 12024 13388 20082 24048 26776 30123 40164 53552 60246 80328 120492 160656 240984 481968 558949 1117898 1676847 2235796 3353694 4471592 5030541 6707388 8943184 10061082 13414776 20122164 26829552 40244328 80488656