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381293884 = 22172499661
BaseRepresentation
bin10110101110100…
…001010100111100
3222120110201212201
4112232201110330
51240102401014
6101500241244
712306641656
oct2656412474
9876421781
10381293884
11186259814
12a7840224
1360cc20aa
14388d56d6
152371ae74
hex16ba153c

381293884 has 36 divisors (see below), whose sum is σ = 711319000. Its totient is φ = 178801920.

The previous prime is 381293821. The next prime is 381293897. The reversal of 381293884 is 488392183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 576514 + ... + 577174.

Almost surely, 2381293884 is an apocalyptic number.

381293884 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

381293884 is a deficient number, since it is larger than the sum of its proper divisors (330025116).

381293884 is a wasteful number, since it uses less digits than its factorization.

381293884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198 (or 1179 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 381293884 is about 19526.7479115187. The cubic root of 381293884 is about 725.1368011372.

The spelling of 381293884 in words is "three hundred eighty-one million, two hundred ninety-three thousand, eight hundred eighty-four".

Divisors: 1 2 4 17 34 68 289 499 578 661 998 1156 1322 1996 2644 8483 11237 16966 22474 33932 44948 144211 191029 288422 329839 382058 576844 659678 764116 1319356 5607263 11214526 22429052 95323471 190646942 381293884