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381423054 = 2363570509
BaseRepresentation
bin10110101111000…
…000110111001110
3222120201022001210
4112233000313032
51240121014204
6101503115250
712311020365
oct2657006716
9876638053
10381423054
11186337871
12a78a2b26
1361038b1c
143892a7dc
1523744389
hex16bc0dce

381423054 has 8 divisors (see below), whose sum is σ = 762846120. Its totient is φ = 127141016.

The previous prime is 381423019. The next prime is 381423059. The reversal of 381423054 is 450324183.

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

381423054 is an admirable number.

It is a super-2 number, since 2×3814230542 = 290967092245373832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381423059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31785249 + ... + 31785260.

It is an arithmetic number, because the mean of its divisors is an integer number (95355765).

Almost surely, 2381423054 is an apocalyptic number.

381423054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

381423054 is a wasteful number, since it uses less digits than its factorization.

381423054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63570514.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 381423054 is about 19530.0551458515. The cubic root of 381423054 is about 725.2186761681.

The spelling of 381423054 in words is "three hundred eighty-one million, four hundred twenty-three thousand, fifty-four".

Divisors: 1 2 3 6 63570509 127141018 190711527 381423054