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474402991 = 23181113957
BaseRepresentation
bin11100010001101…
…101000010101111
31020001200011120011
4130101231002233
51432421343431
6115024034051
714520234046
oct3421550257
91201604504
10474402991
11223873a97
12112a62927
137739223a
144701155d
152b9adcb1
hex1c46d0af

474402991 has 8 divisors (see below), whose sum is σ = 497768544. Its totient is φ = 451265760.

The previous prime is 474402977. The next prime is 474403031. The reversal of 474402991 is 199204474.

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 474402991 - 223 = 466014383 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 (474402911) 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, 52816 + ... + 61141.

It is an arithmetic number, because the mean of its divisors is an integer number (62221068).

Almost surely, 2474402991 is an apocalyptic number.

474402991 is a deficient number, since it is larger than the sum of its proper divisors (23365553).

474402991 is a wasteful number, since it uses less digits than its factorization.

474402991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114161.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 474402991 is about 21780.7940856159. The cubic root of 474402991 is about 779.9183516333.

The spelling of 474402991 in words is "four hundred seventy-four million, four hundred two thousand, nine hundred ninety-one".

Divisors: 1 23 181 4163 113957 2621011 20626217 474402991