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52510401320 = 23513100981541
BaseRepresentation
bin110000111001110111…
…010010001100101000
312000112112120202211112
4300321313102030220
51330020130320240
640042320045452
73536154022016
oct607167221450
9160475522745
1052510401320
11202a6830793
12a215763888
134c4aba15b0
142781ccb8b6
151574e77665
hexc39dd2328

52510401320 has 32 divisors (see below), whose sum is σ = 127236742920. Its totient is φ = 19388455680.

The previous prime is 52510401319. The next prime is 52510401323. The reversal of 52510401320 is 2310401525.

It can be written as a sum of positive squares in 4 ways, for example, as 22583477284 + 29926924036 = 150278^2 + 172994^2 .

It is not an unprimeable number, because it can be changed into a prime (52510401323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50490251 + ... + 50491290.

Almost surely, 252510401320 is an apocalyptic number.

It is an amenable number.

52510401320 is an abundant number, since it is smaller than the sum of its proper divisors (74726341600).

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

52510401320 is a wasteful number, since it uses less digits than its factorization.

52510401320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100981565 (or 100981561 counting only the distinct ones).

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

Adding to 52510401320 its reverse (2310401525), we get a palindrome (54820802845).

The spelling of 52510401320 in words is "fifty-two billion, five hundred ten million, four hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 100981541 201963082 403926164 504907705 807852328 1009815410 1312760033 2019630820 2625520066 4039261640 5251040132 6563800165 10502080264 13127600330 26255200660 52510401320