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381293292 = 223191672339
BaseRepresentation
bin10110101110100…
…001001011101100
3222120110201001210
4112232201023230
51240102341132
6101500234420
712306640152
oct2656411354
9876421053
10381293292
11186259326
12a783ba10
1360cc1a43
14388d53d2
152371abcc
hex16ba12ec

381293292 has 24 divisors (see below), whose sum is σ = 936510400. Its totient is φ = 120408336.

The previous prime is 381293279. The next prime is 381293293. The reversal of 381293292 is 292392183.

381293292 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

381293292 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 381293292.

It is not an unprimeable number, because it can be changed into a prime (381293293) 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, 835942 + ... + 836397.

Almost surely, 2381293292 is an apocalyptic number.

It is an amenable number.

381293292 is an abundant number, since it is smaller than the sum of its proper divisors (555217108).

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

381293292 is a wasteful number, since it uses less digits than its factorization.

381293292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672365 (or 1672363 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 381293292 is about 19526.7327528186. The cubic root of 381293292 is about 725.1364258526.

The spelling of 381293292 in words is "three hundred eighty-one million, two hundred ninety-three thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 1672339 3344678 5017017 6689356 10034034 20068068 31774441 63548882 95323323 127097764 190646646 381293292