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457145052 = 223713418631
BaseRepresentation
bin11011001111110…
…111101011011100
31011212012101010020
4123033313223130
51414012120202
6113210112140
714220445260
oct3317675334
91155171106
10457145052
11215056931
1210911b650
137392bc40
14449dc0a0
152a2005bc
hex1b3f7adc

457145052 has 48 divisors (see below), whose sum is σ = 1312829952. Its totient is φ = 120565440.

The previous prime is 457145047. The next prime is 457145069. The reversal of 457145052 is 250541754.

It is a super-3 number, since 3×4571450523 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208224 + ... + 210407.

It is an arithmetic number, because the mean of its divisors is an integer number (27350624).

Almost surely, 2457145052 is an apocalyptic number.

457145052 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

457145052 is an abundant number, since it is smaller than the sum of its proper divisors (855684900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

457145052 is a wasteful number, since it uses less digits than its factorization.

457145052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418658 (or 418656 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 457145052 is about 21380.9506804539. The cubic root of 457145052 is about 770.3439470890.

The spelling of 457145052 in words is "four hundred fifty-seven million, one hundred forty-five thousand, fifty-two".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 418631 837262 1255893 1674524 2511786 2930417 5023572 5442203 5860834 8791251 10884406 11721668 16326609 17582502 21768812 32653218 35165004 38095421 65306436 76190842 114286263 152381684 228572526 457145052