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3149492871 = 37149975851
BaseRepresentation
bin1011101110111001…
…0111001010000111
322010111022211000010
42323232113022013
522422232232441
61240304321303
7141022150650
oct27356271207
98114284003
103149492871
111376896678
1273a913233
133b2666665
1421c3dc527
15136773116
hexbbb97287

3149492871 has 8 divisors (see below), whose sum is σ = 4799227264. Its totient is φ = 1799710200.

The previous prime is 3149492869. The next prime is 3149492881. The reversal of 3149492871 is 1782949413.

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

It is not a de Polignac number, because 3149492871 - 21 = 3149492869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3149492871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3149492881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74987905 + ... + 74987946.

It is an arithmetic number, because the mean of its divisors is an integer number (599903408).

Almost surely, 23149492871 is an apocalyptic number.

3149492871 is a deficient number, since it is larger than the sum of its proper divisors (1649734393).

3149492871 is a wasteful number, since it uses less digits than its factorization.

3149492871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149975861.

The product of its digits is 435456, while the sum is 48.

The square root of 3149492871 is about 56120.3427555463. The cubic root of 3149492871 is about 1465.8185380969.

The spelling of 3149492871 in words is "three billion, one hundred forty-nine million, four hundred ninety-two thousand, eight hundred seventy-one".

Divisors: 1 3 7 21 149975851 449927553 1049830957 3149492871