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80745674 = 21091732141
BaseRepresentation
bin1001101000000…
…01010011001010
312121221022020112
410310001103022
5131132330144
612002354322
72000220062
oct464012312
9177838215
1080745674
1141640469
122305b9a2
1313961909
14aa1c3a2
15714e99e
hex4d014ca

80745674 has 16 divisors (see below), whose sum is σ = 122993640. Its totient is φ = 39752640.

The previous prime is 80745667. The next prime is 80745677. The reversal of 80745674 is 47654708.

It can be written as a sum of positive squares in 4 ways, for example, as 76440049 + 4305625 = 8743^2 + 2075^2 .

It is not an unprimeable number, because it can be changed into a prime (80745677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36644 + ... + 38784.

Almost surely, 280745674 is an apocalyptic number.

80745674 is a deficient number, since it is larger than the sum of its proper divisors (42247966).

80745674 is a wasteful number, since it uses less digits than its factorization.

80745674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 80745674 is about 8985.8596695030. The cubic root of 80745674 is about 432.2215548785.

The spelling of 80745674 in words is "eighty million, seven hundred forty-five thousand, six hundred seventy-four".

Divisors: 1 2 109 173 218 346 2141 4282 18857 37714 233369 370393 466738 740786 40372837 80745674