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380875231 = 1134625021
BaseRepresentation
bin10110101100111…
…011000111011111
3222112200110121001
4112230323013133
51240001001411
6101443251131
712303246262
oct2654730737
9875613531
10380875231
11185aa3220
12a7679aa7
1360ba6679
1438826cd9
1523686dc1
hex16b3b1df

380875231 has 4 divisors (see below), whose sum is σ = 415500264. Its totient is φ = 346250200.

The previous prime is 380875213. The next prime is 380875247. The reversal of 380875231 is 132578083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-380875231 is a prime.

It is a super-2 number, since 2×3808752312 = 290131883178606722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380875211) 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, 17312500 + ... + 17312521.

It is an arithmetic number, because the mean of its divisors is an integer number (103875066).

Almost surely, 2380875231 is an apocalyptic number.

380875231 is a deficient number, since it is larger than the sum of its proper divisors (34625033).

380875231 is a wasteful number, since it uses less digits than its factorization.

380875231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34625032.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 380875231 is about 19516.0249794880. The cubic root of 380875231 is about 724.8713087474.

The spelling of 380875231 in words is "three hundred eighty million, eight hundred seventy-five thousand, two hundred thirty-one".

Divisors: 1 11 34625021 380875231