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80742104 = 23312111543
BaseRepresentation
bin1001101000000…
…00011011011000
312121221010100022
410310000123120
5131132221404
612002330012
72000203502
oct464003330
9177833308
1080742104
1141638813
1223059908
13139600c1
14aa1ad72
15714d8be
hex4d006d8

80742104 has 32 divisors (see below), whose sum is σ = 157117440. Its totient is φ = 38858400.

The previous prime is 80742097. The next prime is 80742139. The reversal of 80742104 is 40124708.

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, 51557 + ... + 53099.

It is an arithmetic number, because the mean of its divisors is an integer number (4909920).

Almost surely, 280742104 is an apocalyptic number.

It is an amenable number.

80742104 is a deficient number, since it is larger than the sum of its proper divisors (76375336).

80742104 is a wasteful number, since it uses less digits than its factorization.

80742104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 80742104 is about 8985.6610218726. The cubic root of 80742104 is about 432.2151848626.

The spelling of 80742104 in words is "eighty million, seven hundred forty-two thousand, one hundred four".

Divisors: 1 2 4 8 31 62 124 211 248 422 844 1543 1688 3086 6172 6541 12344 13082 26164 47833 52328 95666 191332 325573 382664 651146 1302292 2604584 10092763 20185526 40371052 80742104