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381941430 = 23513979337
BaseRepresentation
bin10110110000111…
…111011010110110
3222121200122010220
4112300333122312
51240234111210
6101522155210
712315306603
oct2660773266
9877618126
10381941430
11186661282
12a7ab2b06
136118aa60
1438a236aa
15237e7c70
hex16c3f6b6

381941430 has 32 divisors (see below), whose sum is σ = 987172704. Its totient is φ = 94016256.

The previous prime is 381941423. The next prime is 381941449. The reversal of 381941430 is 34149183.

It is a junction number, because it is equal to n+sod(n) for n = 381941391 and 381941400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489279 + ... + 490058.

It is an arithmetic number, because the mean of its divisors is an integer number (30849147).

Almost surely, 2381941430 is an apocalyptic number.

381941430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

381941430 is an abundant number, since it is smaller than the sum of its proper divisors (605231274).

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

381941430 is a wasteful number, since it uses less digits than its factorization.

381941430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979360.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 381941430 is about 19543.3218773063. The cubic root of 381941430 is about 725.5470654940.

The spelling of 381941430 in words is "three hundred eighty-one million, nine hundred forty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 979337 1958674 2938011 4896685 5876022 9793370 12731381 14690055 25462762 29380110 38194143 63656905 76388286 127313810 190970715 381941430