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3139895 = 51157089
BaseRepresentation
bin1011111110100100110111
312220112010102
423332210313
51300434040
6151144315
735455133
oct13764467
95815112
103139895
111855060
12107509b
1385c235
145ba3c3
15420515
hex2fe937

3139895 has 8 divisors (see below), whose sum is σ = 4110480. Its totient is φ = 2283520.

The previous prime is 3139889. The next prime is 3139901. The reversal of 3139895 is 5989313.

It is an interprime number because it is at equal distance from previous prime (3139889) and next prime (3139901).

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

It is not a de Polignac number, because 3139895 - 28 = 3139639 is a prime.

It is a super-2 number, since 2×31398952 = 19717881222050, which contains 22 as substring.

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, 28490 + ... + 28599.

It is an arithmetic number, because the mean of its divisors is an integer number (513810).

Almost surely, 23139895 is an apocalyptic number.

3139895 is a deficient number, since it is larger than the sum of its proper divisors (970585).

3139895 is a wasteful number, since it uses less digits than its factorization.

3139895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57105.

The product of its digits is 29160, while the sum is 38.

The square root of 3139895 is about 1771.9748869552. The cubic root of 3139895 is about 146.4328028012.

The spelling of 3139895 in words is "three million, one hundred thirty-nine thousand, eight hundred ninety-five".

Divisors: 1 5 11 55 57089 285445 627979 3139895