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3195881 = 131714461
BaseRepresentation
bin1100001100001111101001
320000100220222
430030033221
51304232011
6152255425
736110303
oct14141751
96010828
103195881
111893127
1210a1575
1387b870
145d2973
15431ddb
hex30c3e9

3195881 has 8 divisors (see below), whose sum is σ = 3644424. Its totient is φ = 2776320.

The previous prime is 3195877. The next prime is 3195893. The reversal of 3195881 is 1885913.

3195881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13225 + 3182656 = 115^2 + 1784^2 .

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 3195881 - 22 = 3195877 is a prime.

It is a super-2 number, since 2×31958812 = 20427310732322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3192881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7010 + ... + 7451.

It is an arithmetic number, because the mean of its divisors is an integer number (455553).

Almost surely, 23195881 is an apocalyptic number.

It is an amenable number.

3195881 is a deficient number, since it is larger than the sum of its proper divisors (448543).

3195881 is a wasteful number, since it uses less digits than its factorization.

3195881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14491.

The product of its digits is 8640, while the sum is 35.

The square root of 3195881 is about 1787.7027157780. The cubic root of 3195881 is about 147.2980056072.

The spelling of 3195881 in words is "three million, one hundred ninety-five thousand, eight hundred eighty-one".

Divisors: 1 13 17 221 14461 187993 245837 3195881