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520620152 = 231310214903
BaseRepresentation
bin11111000010000…
…000100001111000
31100021122020120212
4133002000201320
52031234321102
6123354410252
715621125003
oct3702004170
91307566525
10520620152
11247970698
12126430988
1383b24880
144d20253a
1530a8cc52
hex1f080878

520620152 has 32 divisors (see below), whose sum is σ = 1052496480. Its totient is φ = 240001920.

The previous prime is 520620137. The next prime is 520620161. The reversal of 520620152 is 251026025.

It is a super-3 number, since 3×5206201523 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103733 + ... + 108635.

It is an arithmetic number, because the mean of its divisors is an integer number (32890515).

Almost surely, 2520620152 is an apocalyptic number.

520620152 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

520620152 is an abundant number, since it is smaller than the sum of its proper divisors (531876328).

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

520620152 is a wasteful number, since it uses less digits than its factorization.

520620152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943 (or 5939 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 520620152 is about 22817.1021823544. The cubic root of 520620152 is about 804.4646992233.

Adding to 520620152 its reverse (251026025), we get a palindrome (771646177).

The spelling of 520620152 in words is "five hundred twenty million, six hundred twenty thousand, one hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 1021 2042 4084 4903 8168 9806 13273 19612 26546 39224 53092 63739 106184 127478 254956 509912 5005963 10011926 20023852 40047704 65077519 130155038 260310076 520620152