Search a number
-
+
13351407220 = 225667570361
BaseRepresentation
bin11000110111100111…
…00100111001110100
31021110111000202112201
430123303210321310
5204320430012340
610044502554244
7651601042324
oct143363447164
937414022481
1013351407220
115731580948
122707438984
13134a12b578
149092c1284
1553221779a
hex31bce4e74

13351407220 has 12 divisors (see below), whose sum is σ = 28037955204. Its totient is φ = 5340562880.

The previous prime is 13351407211. The next prime is 13351407221. The reversal of 13351407220 is 2270415331.

It can be written as a sum of positive squares in 2 ways, for example, as 3502035684 + 9849371536 = 59178^2 + 99244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13351407221) 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 3 ways as a sum of consecutive naturals, for example, 333785161 + ... + 333785200.

It is an arithmetic number, because the mean of its divisors is an integer number (2336496267).

Almost surely, 213351407220 is an apocalyptic number.

13351407220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13351407220 is an abundant number, since it is smaller than the sum of its proper divisors (14686547984).

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

13351407220 is a wasteful number, since it uses less digits than its factorization.

13351407220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667570370 (or 667570368 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The spelling of 13351407220 in words is "thirteen billion, three hundred fifty-one million, four hundred seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 667570361 1335140722 2670281444 3337851805 6675703610 13351407220