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572153421 = 3727245401
BaseRepresentation
bin100010000110100…
…101111001001101
31110212121101221110
4202012211321031
52132432402141
6132435122233
720115136530
oct4206457115
91425541843
10572153421
11273a69374
1213b743379
13916c8b28
1455db8a17
153536be16
hex221a5e4d

572153421 has 8 divisors (see below), whose sum is σ = 871852864. Its totient is φ = 326944800.

The previous prime is 572153389. The next prime is 572153423. The reversal of 572153421 is 124351275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 572153421 - 25 = 572153389 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 (572153423) 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, 13622680 + ... + 13622721.

It is an arithmetic number, because the mean of its divisors is an integer number (108981608).

Almost surely, 2572153421 is an apocalyptic number.

It is an amenable number.

572153421 is a deficient number, since it is larger than the sum of its proper divisors (299699443).

572153421 is a wasteful number, since it uses less digits than its factorization.

572153421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27245411.

The product of its digits is 8400, while the sum is 30.

The square root of 572153421 is about 23919.7286982942. The cubic root of 572153421 is about 830.1772597649.

The spelling of 572153421 in words is "five hundred seventy-two million, one hundred fifty-three thousand, four hundred twenty-one".

Divisors: 1 3 7 21 27245401 81736203 190717807 572153421