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381273258 = 2370989627
BaseRepresentation
bin10110101110011…
…100010010101010
3222120102200120210
4112232130102222
51240101221013
6101500001550
712306524562
oct2656342252
9876380523
10381273258
11186245273
12a78302b6
1360cb58a2
14388cbda2
1523714cc3
hex16b9c4aa

381273258 has 16 divisors (see below), whose sum is σ = 763630560. Its totient is φ = 126910416.

The previous prime is 381273257. The next prime is 381273287. The reversal of 381273258 is 852372183.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (381273257) 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, 40560 + ... + 49067.

It is an arithmetic number, because the mean of its divisors is an integer number (47726910).

Almost surely, 2381273258 is an apocalyptic number.

381273258 is an abundant number, since it is smaller than the sum of its proper divisors (382357302).

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

381273258 is a wasteful number, since it uses less digits than its factorization.

381273258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90341.

The product of its digits is 80640, while the sum is 39.

The square root of 381273258 is about 19526.2197570344. The cubic root of 381273258 is about 725.1237255351.

The spelling of 381273258 in words is "three hundred eighty-one million, two hundred seventy-three thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 709 1418 2127 4254 89627 179254 268881 537762 63545543 127091086 190636629 381273258