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457948949 = 1992301251
BaseRepresentation
bin11011010010111…
…011111100010101
31011220201012212012
4123102323330111
51414213331244
6113235234005
714230334063
oct3322737425
91156635765
10457948949
11215555907
12109448905
1373b50b13
1444b6b033
152a30d89e
hex1b4bbf15

457948949 has 4 divisors (see below), whose sum is σ = 460250400. Its totient is φ = 455647500.

The previous prime is 457948943. The next prime is 457948951. The reversal of 457948949 is 949849754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 457948949 - 212 = 457944853 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 (457948943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150427 + ... + 1150824.

It is an arithmetic number, because the mean of its divisors is an integer number (115062600).

Almost surely, 2457948949 is an apocalyptic number.

It is an amenable number.

457948949 is a deficient number, since it is larger than the sum of its proper divisors (2301451).

457948949 is a wasteful number, since it uses less digits than its factorization.

457948949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301450.

The product of its digits is 13063680, while the sum is 59.

The square root of 457948949 is about 21399.7417975077. The cubic root of 457948949 is about 770.7952367738.

The spelling of 457948949 in words is "four hundred fifty-seven million, nine hundred forty-eight thousand, nine hundred forty-nine".

Divisors: 1 199 2301251 457948949