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457068641 = 7919932903
BaseRepresentation
bin11011001111100…
…101000001100001
31011212001111022012
4123033211001201
51414002144031
6113204322305
714220006431
oct3317450141
91155044265
10457068641
11215004487
121090a3395
1373903223
14449bc2c1
152a1d7b2b
hex1b3e5061

457068641 has 8 divisors (see below), whose sum is σ = 463246080. Its totient is φ = 450901152.

The previous prime is 457068631. The next prime is 457068649. The reversal of 457068641 is 146860754.

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 457068641 - 222 = 452874337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457068649) 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, 155996 + ... + 158898.

It is an arithmetic number, because the mean of its divisors is an integer number (57905760).

Almost surely, 2457068641 is an apocalyptic number.

It is an amenable number.

457068641 is a deficient number, since it is larger than the sum of its proper divisors (6177439).

457068641 is a wasteful number, since it uses less digits than its factorization.

457068641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 457068641 is about 21379.1637114271. The cubic root of 457068641 is about 770.3010241473.

The spelling of 457068641 in words is "four hundred fifty-seven million, sixty-eight thousand, six hundred forty-one".

Divisors: 1 79 1993 2903 157447 229337 5785679 457068641