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13263830220 = 2235221063837
BaseRepresentation
bin11000101101001010…
…11111110011001100
31021020101020101111010
430112211133303030
5204131020031340
610032053525220
7646455460644
oct142645376314
937211211433
1013263830220
1156970a4a63
1226a2043810
131334c47464
148db805524
155296b8b80
hex31695fccc

13263830220 has 24 divisors (see below), whose sum is σ = 37138724784. Its totient is φ = 3537021376.

The previous prime is 13263830197. The next prime is 13263830227. The reversal of 13263830220 is 2203836231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (13263830227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110531859 + ... + 110531978.

It is an arithmetic number, because the mean of its divisors is an integer number (1547446866).

Almost surely, 213263830220 is an apocalyptic number.

13263830220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13263830220 is an abundant number, since it is smaller than the sum of its proper divisors (23874894564).

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

13263830220 is a wasteful number, since it uses less digits than its factorization.

13263830220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221063849 (or 221063847 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 13263830220 in words is "thirteen billion, two hundred sixty-three million, eight hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 221063837 442127674 663191511 884255348 1105319185 1326383022 2210638370 2652766044 3315957555 4421276740 6631915110 13263830220