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74663992 = 2313717923
BaseRepresentation
bin1000111001101…
…00100000111000
312012111022202001
410130310200320
5123103221432
611224150344
71564430164
oct434644070
9165438661
1074663992
1139167187
12210083b4
13126126a0
149cb7ca4
15684c9e7
hex4734838

74663992 has 16 divisors (see below), whose sum is σ = 150764040. Its totient is φ = 34460256.

The previous prime is 74663987. The next prime is 74663999. The reversal of 74663992 is 29936647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74663999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358858 + ... + 359065.

Almost surely, 274663992 is an apocalyptic number.

It is an amenable number.

74663992 is an abundant number, since it is smaller than the sum of its proper divisors (76100048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74663992 is a wasteful number, since it uses less digits than its factorization.

74663992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717942 (or 717938 counting only the distinct ones).

The product of its digits is 489888, while the sum is 46.

The square root of 74663992 is about 8640.8328302311. The cubic root of 74663992 is about 421.0856117610.

The spelling of 74663992 in words is "seventy-four million, six hundred sixty-three thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 13 26 52 104 717923 1435846 2871692 5743384 9332999 18665998 37331996 74663992