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74455031 = 795311161
BaseRepresentation
bin1000111000000…
…01011111110111
312012002201002202
410130001133313
5123030030111
611215455115
71562600030
oct434013767
9165081082
1074455031
1139034192
1220b2749b
131256b541
149c61a87
15680ab3b
hex47017f7

74455031 has 8 divisors (see below), whose sum is σ = 85188384. Its totient is φ = 63745920.

The previous prime is 74455027. The next prime is 74455033. The reversal of 74455031 is 13055447.

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

It is not a de Polignac number, because 74455031 - 22 = 74455027 is a prime.

It is a super-2 number, since 2×744550312 = 11087103282421922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74454985 and 74455003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74455033) 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, 1091 + ... + 12251.

It is an arithmetic number, because the mean of its divisors is an integer number (10648548).

Almost surely, 274455031 is an apocalyptic number.

74455031 is a deficient number, since it is larger than the sum of its proper divisors (10733353).

74455031 is a wasteful number, since it uses less digits than its factorization.

74455031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 74455031 is about 8628.7328733714. The cubic root of 74455031 is about 420.6924160500.

The spelling of 74455031 in words is "seventy-four million, four hundred fifty-five thousand, thirty-one".

Divisors: 1 7 953 6671 11161 78127 10636433 74455031