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13192180 = 225659609
BaseRepresentation
bin110010010100…
…101111110100
3220211020021021
4302110233310
511334122210
61150430524
7220063111
oct62245764
926736237
1013192180
1174a0531
124502444
13296b831
141a75908
151258bda
hexc94bf4

13192180 has 12 divisors (see below), whose sum is σ = 27703620. Its totient is φ = 5276864.

The previous prime is 13192171. The next prime is 13192189. The reversal of 13192180 is 8129131.

It is an interprime number because it is at equal distance from previous prime (13192171) and next prime (13192189).

It can be written as a sum of positive squares in 2 ways, for example, as 2196324 + 10995856 = 1482^2 + 3316^2 .

It is a super-2 number, since 2×131921802 = 348067226304800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13192189) 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 3 ways as a sum of consecutive naturals, for example, 329785 + ... + 329824.

It is an arithmetic number, because the mean of its divisors is an integer number (2308635).

Almost surely, 213192180 is an apocalyptic number.

13192180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13192180 is an abundant number, since it is smaller than the sum of its proper divisors (14511440).

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

13192180 is a wasteful number, since it uses less digits than its factorization.

13192180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659618 (or 659616 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 13192180 is about 3632.1040733988. The cubic root of 13192180 is about 236.2864710452.

The spelling of 13192180 in words is "thirteen million, one hundred ninety-two thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 659609 1319218 2638436 3298045 6596090 13192180