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381012455 = 5465716363
BaseRepresentation
bin10110101101011…
…100100111100111
3222112221102211102
4112231130213213
51240014344310
6101450230315
712304360325
oct2655344747
9875842742
10381012455
1118608732a
12a772539b
1360c23c75
1438860d15
15236b28a5
hex16b5c9e7

381012455 has 8 divisors (see below), whose sum is σ = 457341072. Its totient is φ = 304725888.

The previous prime is 381012433. The next prime is 381012461. The reversal of 381012455 is 554210183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381012455 - 210 = 381011431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15104 + ... + 31466.

It is an arithmetic number, because the mean of its divisors is an integer number (57167634).

Almost surely, 2381012455 is an apocalyptic number.

381012455 is a deficient number, since it is larger than the sum of its proper divisors (76328617).

381012455 is a wasteful number, since it uses less digits than its factorization.

381012455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21025.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 381012455 is about 19519.5403378256. The cubic root of 381012455 is about 724.9583519476.

The spelling of 381012455 in words is "three hundred eighty-one million, twelve thousand, four hundred fifty-five".

Divisors: 1 5 4657 16363 23285 81815 76202491 381012455