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3930131 = 191311579
BaseRepresentation
bin1110111111100000010011
321101200010102
432333200103
52001231011
6220123015
745256052
oct16774023
97350112
103930131
112244847
12139646b
13a77b2a
14744399
1552973b
hex3bf813

3930131 has 8 divisors (see below), whose sum is σ = 4171200. Its totient is φ = 3692520.

The previous prime is 3930061. The next prime is 3930139. The reversal of 3930131 is 1310393.

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 3930131 - 214 = 3913747 is a prime.

It is a super-2 number, since 2×39301312 = 30891859354322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3930139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700 + ... + 3278.

It is an arithmetic number, because the mean of its divisors is an integer number (521400).

Almost surely, 23930131 is an apocalyptic number.

3930131 is a deficient number, since it is larger than the sum of its proper divisors (241069).

3930131 is a wasteful number, since it uses less digits than its factorization.

3930131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 3930131 is about 1982.4558002639. The cubic root of 3930131 is about 157.8104199510.

The spelling of 3930131 in words is "three million, nine hundred thirty thousand, one hundred thirty-one".

Divisors: 1 19 131 1579 2489 30001 206849 3930131