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368628987 = 31021120349
BaseRepresentation
bin10101111110001…
…101010011111011
3221200122021220110
4111332031103323
51223332111422
6100324555403
712064203036
oct2576152373
9850567813
10368628987
1117a099461
12a3552b63
135b4a957c
1436d5a01d
152256860c
hex15f8d4fb

368628987 has 8 divisors (see below), whose sum is σ = 491990800. Its totient is φ = 245509920.

The previous prime is 368628983. The next prime is 368629031. The reversal of 368628987 is 789826863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 368628987 - 22 = 368628983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (368628983) 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, 57112 + ... + 63237.

It is an arithmetic number, because the mean of its divisors is an integer number (61498850).

Almost surely, 2368628987 is an apocalyptic number.

368628987 is a deficient number, since it is larger than the sum of its proper divisors (123361813).

368628987 is a wasteful number, since it uses less digits than its factorization.

368628987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121373.

The product of its digits is 6967296, while the sum is 57.

The square root of 368628987 is about 19199.7132009830. The cubic root of 368628987 is about 717.0176190843.

The spelling of 368628987 in words is "three hundred sixty-eight million, six hundred twenty-eight thousand, nine hundred eighty-seven".

Divisors: 1 3 1021 3063 120349 361047 122876329 368628987