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31143143110 = 2529091070579
BaseRepresentation
bin11101000000010001…
…101010011011000110
32222101102022120220211
4131000101222123012
51002240121034420
622150145350034
72151520230412
oct350021523306
988342276824
1031143143110
1112231546402
12605193831a
132c24170141
1417161b7d42
15c24182e5a
hex74046a6c6

31143143110 has 16 divisors (see below), whose sum is σ = 56076980400. Its totient is φ = 12452963296.

The previous prime is 31143143041. The next prime is 31143143147. The reversal of 31143143110 is 1134134113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506200 + ... + 564379.

It is an arithmetic number, because the mean of its divisors is an integer number (3504811275).

Almost surely, 231143143110 is an apocalyptic number.

31143143110 is a deficient number, since it is larger than the sum of its proper divisors (24933837290).

31143143110 is a wasteful number, since it uses less digits than its factorization.

31143143110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073495.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31143143110 its reverse (1134134113), we get a palindrome (32277277223).

The spelling of 31143143110 in words is "thirty-one billion, one hundred forty-three million, one hundred forty-three thousand, one hundred ten".

Divisors: 1 2 5 10 2909 5818 14545 29090 1070579 2141158 5352895 10705790 3114314311 6228628622 15571571555 31143143110