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13254662020 = 2254011652701
BaseRepresentation
bin11000101100000101…
…00001011110000100
31021012201222121002011
430112002201132010
5204121143141040
610031125224004
7646314524335
oct142602413604
937181877064
1013254662020
115691a02836
12269ab62004
1313330873a2
148da4da28c
155289a73ea
hex3160a1784

13254662020 has 24 divisors (see below), whose sum is σ = 27904220568. Its totient is φ = 5288640000.

The previous prime is 13254662011. The next prime is 13254662021. The reversal of 13254662020 is 2026645231.

It can be written as a sum of positive squares in 4 ways, for example, as 5235101316 + 8019560704 = 72354^2 + 89552^2 .

It is not an unprimeable number, because it can be changed into a prime (13254662021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818331 + ... + 834370.

It is an arithmetic number, because the mean of its divisors is an integer number (1162675857).

Almost surely, 213254662020 is an apocalyptic number.

13254662020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13254662020 is an abundant number, since it is smaller than the sum of its proper divisors (14649558548).

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

13254662020 is a wasteful number, since it uses less digits than its factorization.

13254662020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653111 (or 1653109 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 13254662020 in words is "thirteen billion, two hundred fifty-four million, six hundred sixty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 401 802 1604 2005 4010 8020 1652701 3305402 6610804 8263505 16527010 33054020 662733101 1325466202 2650932404 3313665505 6627331010 13254662020