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381130474 = 2372751131
BaseRepresentation
bin10110101101111…
…001011011101010
3222120011102201111
4112231321123222
51240032133344
6101452540534
712305361364
oct2655713352
9876142644
10381130474
11186157a6a
12a778174a
1360c658ba
1438891d34
15236d7834
hex16b796ea

381130474 has 8 divisors (see below), whose sum is σ = 571860288. Its totient is φ = 190510380.

The previous prime is 381130471. The next prime is 381130511. The reversal of 381130474 is 474031183.

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

It is a super-2 number, since 2×3811304742 = 290520876422929352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (381130471) 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, 18112 + ... + 33019.

It is an arithmetic number, because the mean of its divisors is an integer number (71482536).

Almost surely, 2381130474 is an apocalyptic number.

381130474 is a deficient number, since it is larger than the sum of its proper divisors (190729814).

381130474 is a wasteful number, since it uses less digits than its factorization.

381130474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54860.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 381130474 is about 19522.5632026125. The cubic root of 381130474 is about 725.0331964189.

The spelling of 381130474 in words is "three hundred eighty-one million, one hundred thirty thousand, four hundred seventy-four".

Divisors: 1 2 3727 7454 51131 102262 190565237 381130474