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80749084 = 22131552867
BaseRepresentation
bin1001101000000…
…10001000011100
312121221110220211
410310002020130
5131132432314
612002422204
72000233033
oct464021034
9177843824
1080749084
1141642a89
1223061964
1313963330
14aa1d71a
1571509c4
hex4d0221c

80749084 has 12 divisors (see below), whose sum is σ = 152181064. Its totient is φ = 37268784.

The previous prime is 80749061. The next prime is 80749091. The reversal of 80749084 is 48094708.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 776382 + ... + 776485.

Almost surely, 280749084 is an apocalyptic number.

It is an amenable number.

80749084 is a deficient number, since it is larger than the sum of its proper divisors (71431980).

80749084 is a wasteful number, since it uses less digits than its factorization.

80749084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552884 (or 1552882 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 80749084 is about 8986.0494100578. The cubic root of 80749084 is about 432.2276392282.

It can be divided in two parts, 8074 and 9084, that multiplied together give a triangular number (73344216 = T12111).

The spelling of 80749084 in words is "eighty million, seven hundred forty-nine thousand, eighty-four".

Divisors: 1 2 4 13 26 52 1552867 3105734 6211468 20187271 40374542 80749084