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31230023003144 = 2372919230309731
BaseRepresentation
bin1110001100111010011100…
…11011010110110000001000
311002120120010222222110012222
413012131032123112300020
513043133041342100034
6150230512520553212
76402203040405530
oct706351633266010
9132516128873188
1031230023003144
119a5063a902839
123604707622808
131456c94ab4374
1479d780dca4c0
1539257063412e
hex1c674e6d6c08

31230023003144 has 32 divisors (see below), whose sum is σ = 69229115035200. Its totient is φ = 12922768138560.

The previous prime is 31230023003119. The next prime is 31230023003147. The reversal of 31230023003144 is 44130032003213.

It is not an unprimeable number, because it can be changed into a prime (31230023003147) 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, 9615153242 + ... + 9615156489.

It is an arithmetic number, because the mean of its divisors is an integer number (2163409844850).

Almost surely, 231230023003144 is an apocalyptic number.

It is an amenable number.

31230023003144 is an abundant number, since it is smaller than the sum of its proper divisors (37999092032056).

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

31230023003144 is a wasteful number, since it uses less digits than its factorization.

31230023003144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19230309773 (or 19230309769 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31230023003144 its reverse (44130032003213), we get a palindrome (75360055006357).

The spelling of 31230023003144 in words is "thirty-one trillion, two hundred thirty billion, twenty-three million, three thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 28 29 56 58 116 203 232 406 812 1624 19230309731 38460619462 76921238924 134612168117 153842477848 269224336234 538448672468 557678982199 1076897344936 1115357964398 2230715928796 3903752875393 4461431857592 7807505750786 15615011501572 31230023003144