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5731272 = 233279601
BaseRepresentation
bin10101110111001111001000
3101210011211100
4111313033020
52431400042
6322501400
766500151
oct25671710
911704740
105731272
113264a98
121b04860
1312588b1
14a92928
1578324c
hex5773c8

5731272 has 24 divisors (see below), whose sum is σ = 15522390. Its totient is φ = 1910400.

The previous prime is 5731259. The next prime is 5731277. The reversal of 5731272 is 2721375.

It can be written as a sum of positive squares in only one way, i.e., 5731236 + 36 = 2394^2 + 6^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (5731277) 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 5 ways as a sum of consecutive naturals, for example, 39729 + ... + 39872.

Almost surely, 25731272 is an apocalyptic number.

It is an amenable number.

5731272 is an abundant number, since it is smaller than the sum of its proper divisors (9791118).

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

5731272 is a wasteful number, since it uses less digits than its factorization.

5731272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79613 (or 79606 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 5731272 is about 2394.0075187852. The cubic root of 5731272 is about 178.9576796220.

It can be divided in two parts, 57 and 31272, that added together give a square (31329 = 1772).

The spelling of 5731272 in words is "five million, seven hundred thirty-one thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 79601 159202 238803 318404 477606 636808 716409 955212 1432818 1910424 2865636 5731272