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381381058 = 2190690529
BaseRepresentation
bin10110101110110…
…110100111000010
3222120122011110101
4112232312213002
51240113143213
6101502153014
712310454062
oct2656664702
9876564411
10381381058
11186309263
12a788276a
1361022986
14389193a2
1523736bdd
hex16bb69c2

381381058 has 4 divisors (see below), whose sum is σ = 572071590. Its totient is φ = 190690528.

The previous prime is 381381047. The next prime is 381381071. The reversal of 381381058 is 850183183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 850183183 = 1069795307.

It can be written as a sum of positive squares in only one way, i.e., 380367009 + 1014049 = 19503^2 + 1007^2 .

It is a super-2 number, since 2×3813810582 = 290903022802398728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95345263 + ... + 95345266.

Almost surely, 2381381058 is an apocalyptic number.

381381058 is a deficient number, since it is larger than the sum of its proper divisors (190690532).

381381058 is a wasteful number, since it uses less digits than its factorization.

381381058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190690531.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 381381058 is about 19528.9799528803. The cubic root of 381381058 is about 725.1920588281.

The spelling of 381381058 in words is "three hundred eighty-one million, three hundred eighty-one thousand, fifty-eight".

Divisors: 1 2 190690529 381381058