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74432071 = 723462311
BaseRepresentation
bin1000110111110…
…11111001000111
312012001112121101
410123323321013
5123023311241
611215200531
71562443060
oct433737107
9165045541
1074432071
1139018a0a
1220b16147
1312560c5c
149c57567
156803e31
hex46fbe47

74432071 has 8 divisors (see below), whose sum is σ = 88763904. Its totient is φ = 61024920.

The previous prime is 74432053. The next prime is 74432093. The reversal of 74432071 is 17023447.

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

It is a cyclic number.

It is not a de Polignac number, because 74432071 - 27 = 74431943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74432021) by changing a digit.

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, 230995 + ... + 231316.

It is an arithmetic number, because the mean of its divisors is an integer number (11095488).

Almost surely, 274432071 is an apocalyptic number.

74432071 is a deficient number, since it is larger than the sum of its proper divisors (14331833).

74432071 is a wasteful number, since it uses less digits than its factorization.

74432071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462341.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 74432071 is about 8627.4023321044. The cubic root of 74432071 is about 420.6491680617.

The spelling of 74432071 in words is "seventy-four million, four hundred thirty-two thousand, seventy-one".

Divisors: 1 7 23 161 462311 3236177 10633153 74432071