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10520540450 = 252747962753
BaseRepresentation
bin10011100110001001…
…01011010100100010
31000011012020211101022
421303010223110202
5133021224243300
64455535405442
7521465055410
oct116304532442
930135224338
1010520540450
114509630832
122057383882
13cb87b4984
1471b3442b0
15418932285
hex27312b522

10520540450 has 48 divisors (see below), whose sum is σ = 22410708480. Its totient is φ = 3599454720.

The previous prime is 10520540441. The next prime is 10520540501. The reversal of 10520540450 is 5404502501.

It is a super-2 number, since 2×105205404502 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136274 + ... + 199026.

It is an arithmetic number, because the mean of its divisors is an integer number (466889760).

Almost surely, 210520540450 is an apocalyptic number.

10520540450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10520540450 is an abundant number, since it is smaller than the sum of its proper divisors (11890168030).

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

10520540450 is a wasteful number, since it uses less digits than its factorization.

10520540450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63251 (or 63246 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The spelling of 10520540450 in words is "ten billion, five hundred twenty million, five hundred forty thousand, four hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 175 350 479 958 2395 3353 4790 6706 11975 16765 23950 33530 62753 83825 125506 167650 313765 439271 627530 878542 1568825 2196355 3137650 4392710 10981775 21963550 30058687 60117374 150293435 210410809 300586870 420821618 751467175 1052054045 1502934350 2104108090 5260270225 10520540450