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15196068 = 2232422113
BaseRepresentation
bin111001111101…
…111110100100
31001121001002100
4321331332210
512342233233
61301412100
7243110256
oct71757644
931531070
1015196068
11863a038
12510a030
1331c0974
142037cd6
151502813
hexe7dfa4

15196068 has 18 divisors (see below), whose sum is σ = 38412374. Its totient is φ = 5065344.

The previous prime is 15196043. The next prime is 15196081. The reversal of 15196068 is 86069151.

It can be written as a sum of positive squares in only one way, i.e., 15116544 + 79524 = 3888^2 + 282^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 422113 = 15196068 / (1 + 5 + 1 + 9 + 6 + 0 + 6 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211021 + ... + 211092.

Almost surely, 215196068 is an apocalyptic number.

15196068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15196068 is an abundant number, since it is smaller than the sum of its proper divisors (23216306).

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

15196068 is a wasteful number, since it uses less digits than its factorization.

15196068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422123 (or 422118 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 15196068 is about 3898.2134369478. The cubic root of 15196068 is about 247.6911043161.

The spelling of 15196068 in words is "fifteen million, one hundred ninety-six thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 422113 844226 1266339 1688452 2532678 3799017 5065356 7598034 15196068