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3124212131 = 79316312503
BaseRepresentation
bin1011101000110111…
…1011000110100011
322001201202102100102
42322031323012203
522344244242011
61234002413015
7140264236115
oct27215730643
98051672312
103124212131
1113635998a7
1273236116b
133aa354741
14218cdb3b5
1513442c73b
hexba37b1a3

3124212131 has 8 divisors (see below), whose sum is σ = 3165012480. Its totient is φ = 3083443272.

The previous prime is 3124212127. The next prime is 3124212149. The reversal of 3124212131 is 1312124213.

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 3124212131 - 22 = 3124212127 is a prime.

It is a super-2 number, since 2×31242121312 = 19521402878975122322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3124212101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243626 + ... + 256128.

It is an arithmetic number, because the mean of its divisors is an integer number (395626560).

Almost surely, 23124212131 is an apocalyptic number.

3124212131 is a deficient number, since it is larger than the sum of its proper divisors (40800349).

3124212131 is a wasteful number, since it uses less digits than its factorization.

3124212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15745.

The product of its digits is 288, while the sum is 20.

The square root of 3124212131 is about 55894.6520787096. The cubic root of 3124212131 is about 1461.8859924897.

Adding to 3124212131 its reverse (1312124213), we get a palindrome (4436336344).

The spelling of 3124212131 in words is "three billion, one hundred twenty-four million, two hundred twelve thousand, one hundred thirty-one".

Divisors: 1 79 3163 12503 249877 987737 39546989 3124212131