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13278885330 = 235442629511
BaseRepresentation
bin11000101110111101…
…11011010111010010
31021021102120021012210
430113132323113102
5204143343312310
610033352332550
7650030443254
oct142736732722
937242507183
1013278885330
1156a46480a7
1226a70a4156
1313380b8bc9
148dd803cd4
1552ab8e820
hex3177bb5d2

13278885330 has 16 divisors (see below), whose sum is σ = 31869324864. Its totient is φ = 3541036080.

The previous prime is 13278885329. The next prime is 13278885337. The reversal of 13278885330 is 3358887231.

It is a self number, because there is not a number n which added to its sum of digits gives 13278885330.

It is not an unprimeable number, because it can be changed into a prime (13278885337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221314726 + ... + 221314785.

It is an arithmetic number, because the mean of its divisors is an integer number (1991832804).

Almost surely, 213278885330 is an apocalyptic number.

13278885330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13278885330 is an abundant number, since it is smaller than the sum of its proper divisors (18590439534).

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

13278885330 is a wasteful number, since it uses less digits than its factorization.

13278885330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442629521.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 13278885330 in words is "thirteen billion, two hundred seventy-eight million, eight hundred eighty-five thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 442629511 885259022 1327888533 2213147555 2655777066 4426295110 6639442665 13278885330