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80731874 = 2192313607
BaseRepresentation
bin1001100111111…
…01111011100010
312121220121022102
410303331323202
5131131404444
612002210402
72000131616
oct463757342
9177817272
1080731874
1141631063
1223053a02
1313958552
14aa17346
15714a84e
hex4cfdee2

80731874 has 24 divisors (see below), whose sum is σ = 131966208. Its totient is φ = 36997560.

The previous prime is 80731841. The next prime is 80731897. The reversal of 80731874 is 47813708.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20579 + ... + 24185.

It is an arithmetic number, because the mean of its divisors is an integer number (5498592).

Almost surely, 280731874 is an apocalyptic number.

80731874 is a deficient number, since it is larger than the sum of its proper divisors (51234334).

80731874 is a wasteful number, since it uses less digits than its factorization.

80731874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678 (or 3659 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 80731874 is about 8985.0917635826. The cubic root of 80731874 is about 432.1969302475.

The spelling of 80731874 in words is "eighty million, seven hundred thirty-one thousand, eight hundred seventy-four".

Divisors: 1 2 19 31 38 62 361 589 722 1178 3607 7214 11191 22382 68533 111817 137066 223634 1302127 2124523 2604254 4249046 40365937 80731874