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520251342 = 23136669889
BaseRepresentation
bin11111000000100…
…110011111001110
31100020221111200020
4133000212133032
52031141020332
6123342443010
715615030522
oct3700463716
91306844606
10520251342
11247739596
12126293466
1383a25a40
144d147d82
1530a1882c
hex1f0267ce

520251342 has 16 divisors (see below), whose sum is σ = 1120541520. Its totient is φ = 160077312.

The previous prime is 520251341. The next prime is 520251349. The reversal of 520251342 is 243152025.

It is a super-2 number, since 2×5202513422 = 541322917705601928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520251341) 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, 3334867 + ... + 3335022.

It is an arithmetic number, because the mean of its divisors is an integer number (70033845).

Almost surely, 2520251342 is an apocalyptic number.

520251342 is an abundant number, since it is smaller than the sum of its proper divisors (600290178).

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

520251342 is a wasteful number, since it uses less digits than its factorization.

520251342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6669907.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 520251342 is about 22809.0188741208. The cubic root of 520251342 is about 804.2746920353.

The spelling of 520251342 in words is "five hundred twenty million, two hundred fifty-one thousand, three hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 6669889 13339778 20009667 40019334 86708557 173417114 260125671 520251342