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457442631 = 3283612373
BaseRepresentation
bin11011010001000…
…000010101000111
31011212202111022200
4123101000111013
51414101131011
6113220325543
714223124662
oct3321002507
91155674280
10457442631
1121523a468
121092438b3
1373a04519
1444a786d9
152a25d856
hex1b440547

457442631 has 12 divisors (see below), whose sum is σ = 668712408. Its totient is φ = 301287024.

The previous prime is 457442597. The next prime is 457442633. The reversal of 457442631 is 136244754.

It is not a de Polignac number, because 457442631 - 214 = 457426247 is a prime.

It is a super-2 number, since 2×4574426312 = 418507521312404322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457442633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305440 + ... + 306933.

It is an arithmetic number, because the mean of its divisors is an integer number (55726034).

Almost surely, 2457442631 is an apocalyptic number.

457442631 is a deficient number, since it is larger than the sum of its proper divisors (211269777).

457442631 is a wasteful number, since it uses less digits than its factorization.

457442631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612462 (or 612459 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 457442631 is about 21387.9085232755. The cubic root of 457442631 is about 770.5110628710.

The spelling of 457442631 in words is "four hundred fifty-seven million, four hundred forty-two thousand, six hundred thirty-one".

Divisors: 1 3 9 83 249 747 612373 1837119 5511357 50826959 152480877 457442631