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253231064 = 23311021093
BaseRepresentation
bin11110001011111…
…11111111011000
3122122111110201022
433011333333120
51004311343224
641043342012
76163266662
oct1705777730
9578443638
10253231064
1111aa40279
1270981908
1340604288
14258bb532
151737165e
hexf17ffd8

253231064 has 16 divisors (see below), whose sum is σ = 490125120. Its totient is φ = 122531040.

The previous prime is 253231039. The next prime is 253231067. The reversal of 253231064 is 460132352.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253231067) 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, 510299 + ... + 510794.

It is an arithmetic number, because the mean of its divisors is an integer number (30632820).

Almost surely, 2253231064 is an apocalyptic number.

It is an amenable number.

253231064 is a deficient number, since it is larger than the sum of its proper divisors (236894056).

253231064 is a wasteful number, since it uses less digits than its factorization.

253231064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021130 (or 1021126 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 253231064 is about 15913.2354975347. The cubic root of 253231064 is about 632.6628400630.

The spelling of 253231064 in words is "two hundred fifty-three million, two hundred thirty-one thousand, sixty-four".

Divisors: 1 2 4 8 31 62 124 248 1021093 2042186 4084372 8168744 31653883 63307766 126615532 253231064