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31201143314 = 2113145749477
BaseRepresentation
bin11101000011101110…
…111010101000010010
32222112110110022020112
4131003232322220102
51002344443041224
622200020441322
72153123225255
oct350356725022
988473408215
1031201143314
1112261260860
126069249242
132c33199aa3
14171db9509c
15c292dd30e
hex743bbaa12

31201143314 has 16 divisors (see below), whose sum is σ = 52703398656. Its totient is φ = 13724842800.

The previous prime is 31201143241. The next prime is 31201143317. The reversal of 31201143314 is 41334110213.

It is a super-2 number, since 2×312011433142 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31201143314.

It is not an unprimeable number, because it can be changed into a prime (31201143317) 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, 22874057 + ... + 22875420.

It is an arithmetic number, because the mean of its divisors is an integer number (3293962416).

Almost surely, 231201143314 is an apocalyptic number.

31201143314 is a deficient number, since it is larger than the sum of its proper divisors (21502255342).

31201143314 is a wasteful number, since it uses less digits than its factorization.

31201143314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45749521.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31201143314 its reverse (41334110213), we get a palindrome (72535253527).

The spelling of 31201143314 in words is "thirty-one billion, two hundred one million, one hundred forty-three thousand, three hundred fourteen".

Divisors: 1 2 11 22 31 62 341 682 45749477 91498954 503244247 1006488494 1418233787 2836467574 15600571657 31201143314