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31441313112 = 23311167713149
BaseRepresentation
bin11101010010000011…
…000101110101011000
310000011012101012021020
4131102003011311120
51003342434004422
622235520242440
72162100515616
oct352203056530
9100135335236
1031441313112
111237488a9a0
126115770420
132c70b79cb1
141743a326b6
15c4042e95c
hex7520c5d58

31441313112 has 64 divisors (see below), whose sum is σ = 86262624000. Its totient is φ = 9470605440.

The previous prime is 31441313089. The next prime is 31441313131. The reversal of 31441313112 is 21131314413.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312487 + ... + 400662.

It is an arithmetic number, because the mean of its divisors is an integer number (1347853500).

Almost surely, 231441313112 is an apocalyptic number.

It is an amenable number.

31441313112 is an abundant number, since it is smaller than the sum of its proper divisors (54821310888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31441313112 is a wasteful number, since it uses less digits than its factorization.

31441313112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713336 (or 713332 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 31441313112 its reverse (21131314413), we get a palindrome (52572627525).

The spelling of 31441313112 in words is "thirty-one billion, four hundred forty-one million, three hundred thirteen thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 167 264 334 501 668 1002 1336 1837 2004 3674 4008 5511 7348 11022 14696 22044 44088 713149 1426298 2139447 2852596 4278894 5705192 7844639 8557788 15689278 17115576 23533917 31378556 47067834 62757112 94135668 119095883 188271336 238191766 357287649 476383532 714575298 952767064 1310054713 1429150596 2620109426 2858301192 3930164139 5240218852 7860328278 10480437704 15720656556 31441313112