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457493253 = 37223472879
BaseRepresentation
bin11011010001001…
…100101100000101
31011212212001202120
4123101030230011
51414104241003
6113221400153
714223425400
oct3321145405
91155761676
10457493253
112152744a8
12109269059
1373a21589
1444a8cd37
152a26d853
hex1b44cb05

457493253 has 48 divisors (see below), whose sum is σ = 756449280. Its totient is φ = 244653024.

The previous prime is 457493251. The next prime is 457493287. The reversal of 457493253 is 352394754.

It is not a de Polignac number, because 457493253 - 21 = 457493251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457493251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157468 + ... + 160346.

It is an arithmetic number, because the mean of its divisors is an integer number (15759360).

Almost surely, 2457493253 is an apocalyptic number.

It is an amenable number.

457493253 is a deficient number, since it is larger than the sum of its proper divisors (298956027).

457493253 is a wasteful number, since it uses less digits than its factorization.

457493253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966 (or 2959 counting only the distinct ones).

The product of its digits is 453600, while the sum is 42.

The square root of 457493253 is about 21389.0919162081. The cubic root of 457493253 is about 770.5394841925.

The spelling of 457493253 in words is "four hundred fifty-seven million, four hundred ninety-three thousand, two hundred fifty-three".

Divisors: 1 3 7 21 23 47 49 69 141 147 161 329 483 987 1081 1127 2303 2879 3243 3381 6909 7567 8637 20153 22701 52969 60459 66217 135313 141071 158907 198651 405939 423213 463519 947191 1390557 2841573 3112199 3244633 6630337 9336597 9733899 19891011 21785393 65356179 152497751 457493253