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80356672 = 2611114143
BaseRepresentation
bin1001100101000…
…10010101000000
312121012112122001
410302202111000
5131032403142
611550153344
71664010004
oct462422500
9177175561
1080356672
11413a5180
1222ab2854
1313856836
14a95a704
1570c45b7
hex4ca2540

80356672 has 28 divisors (see below), whose sum is σ = 173955456. Its totient is φ = 36525440.

The previous prime is 80356669. The next prime is 80356693. The reversal of 80356672 is 27665308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56368 + ... + 57775.

Almost surely, 280356672 is an apocalyptic number.

It is an amenable number.

80356672 is an abundant number, since it is smaller than the sum of its proper divisors (93598784).

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

80356672 is a wasteful number, since it uses less digits than its factorization.

80356672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114166 (or 114156 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 80356672 is about 8964.1883068128. The cubic root of 80356672 is about 431.5263441444.

It can be divided in two parts, 803 and 56672, that added together give a palindrome (57475).

The spelling of 80356672 in words is "eighty million, three hundred fifty-six thousand, six hundred seventy-two".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 352 704 114143 228286 456572 913144 1255573 1826288 2511146 3652576 5022292 7305152 10044584 20089168 40178336 80356672