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3131032412 = 2223109312229
BaseRepresentation
bin1011101010011111…
…1100001101011100
322002012120221000102
42322213330031130
522403021014122
61234404520232
7140406223244
oct27247741534
98065527012
103131032412
111367427aa2
127346b0078
133ab8a1c01
14219b94b24
15134d28492
hexba9fc35c

3131032412 has 24 divisors (see below), whose sum is σ = 5770010400. Its totient is φ = 1483707456.

The previous prime is 3131032397. The next prime is 3131032453. The reversal of 3131032412 is 2142301313.

It is a congruent number.

It is an unprimeable number.

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, 146087 + ... + 166142.

It is an arithmetic number, because the mean of its divisors is an integer number (240417100).

Almost surely, 23131032412 is an apocalyptic number.

It is an amenable number.

3131032412 is a deficient number, since it is larger than the sum of its proper divisors (2638977988).

3131032412 is a wasteful number, since it uses less digits than its factorization.

3131032412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312365 (or 312363 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3131032412 is about 55955.6289572372. The cubic root of 3131032412 is about 1462.9490046789.

Adding to 3131032412 its reverse (2142301313), we get a palindrome (5273333725).

The spelling of 3131032412 in words is "three billion, one hundred thirty-one million, thirty-two thousand, four hundred twelve".

Divisors: 1 2 4 23 46 92 109 218 436 2507 5014 10028 312229 624458 1248916 7181267 14362534 28725068 34032961 68065922 136131844 782758103 1565516206 3131032412