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74667965 = 561244813
BaseRepresentation
bin1000111001101…
…01011110111101
312012111112012012
410130311132331
5123103333330
611224221005
71564444601
oct434653675
9165445165
1074667965
113916a169
122100a765
1312614438
149cb9501
15684dc95
hex47357bd

74667965 has 8 divisors (see below), whose sum is σ = 91070808. Its totient is φ = 58754880.

The previous prime is 74667947. The next prime is 74667979. The reversal of 74667965 is 56976647.

It can be written as a sum of positive squares in 4 ways, for example, as 7722841 + 66945124 = 2779^2 + 8182^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74667965 - 214 = 74651581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 122102 + ... + 122711.

It is an arithmetic number, because the mean of its divisors is an integer number (11383851).

Almost surely, 274667965 is an apocalyptic number.

It is an amenable number.

74667965 is a deficient number, since it is larger than the sum of its proper divisors (16402843).

74667965 is a wasteful number, since it uses less digits than its factorization.

74667965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244879.

The product of its digits is 1905120, while the sum is 50.

The square root of 74667965 is about 8641.0627239941. The cubic root of 74667965 is about 421.0930805261.

The spelling of 74667965 in words is "seventy-four million, six hundred sixty-seven thousand, nine hundred sixty-five".

Divisors: 1 5 61 305 244813 1224065 14933593 74667965