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380172079 = 7271200407
BaseRepresentation
bin10110101010001…
…111011100101111
3222111100202001101
4112222033130233
51234311001304
6101420223531
712264260260
oct2652173457
9874322041
10380172079
11185662a01
12a739aba7
13609bb5c1
14386c2967
15235988a4
hex16a8f72f

380172079 has 8 divisors (see below), whose sum is σ = 436087808. Its totient is φ = 324657720.

The previous prime is 380172047. The next prime is 380172097. The reversal of 380172079 is 970271083.

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

It is a cyclic number.

It is not a de Polignac number, because 380172079 - 25 = 380172047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380175079) 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, 98307 + ... + 102100.

It is an arithmetic number, because the mean of its divisors is an integer number (54510976).

Almost surely, 2380172079 is an apocalyptic number.

380172079 is a deficient number, since it is larger than the sum of its proper divisors (55915729).

380172079 is a wasteful number, since it uses less digits than its factorization.

380172079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200685.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 380172079 is about 19498.0019232741. The cubic root of 380172079 is about 724.4249607500.

The spelling of 380172079 in words is "three hundred eighty million, one hundred seventy-two thousand, seventy-nine".

Divisors: 1 7 271 1897 200407 1402849 54310297 380172079