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520289076 = 22343357423
BaseRepresentation
bin11111000000101…
…111101100110100
31100021000102102210
4133000233230310
52031143222301
6123343333420
715615245526
oct3700575464
91307012383
10520289076
1124776497a
121262b1270
1383a39c78
144d157a16
1530a24ad6
hex1f02fb34

520289076 has 12 divisors (see below), whose sum is σ = 1214007872. Its totient is φ = 173429688.

The previous prime is 520289071. The next prime is 520289113. The reversal of 520289076 is 670982025.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520289071) 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, 21678700 + ... + 21678723.

Almost surely, 2520289076 is an apocalyptic number.

It is an amenable number.

520289076 is an abundant number, since it is smaller than the sum of its proper divisors (693718796).

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

520289076 is a wasteful number, since it uses less digits than its factorization.

520289076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43357430 (or 43357428 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 520289076 is about 22809.8460319223. The cubic root of 520289076 is about 804.2941363340.

The spelling of 520289076 in words is "five hundred twenty million, two hundred eighty-nine thousand, seventy-six".

Divisors: 1 2 3 4 6 12 43357423 86714846 130072269 173429692 260144538 520289076