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31400312412044 = 2257113747947641
BaseRepresentation
bin1110010001110111101000…
…11101111001011110001100
311010011211200202112201201102
413020323310131321132030
513103430314434141134
6150441034314002232
76420412004452442
oct710736435713614
9133154622481642
1031400312412044
11a006885830114
123631711116378
13146a06299b604
147a7ad727ab92
15396bda59a37e
hex1c8ef477978c

31400312412044 has 12 divisors (see below), whose sum is σ = 55046782358568. Its totient is φ = 15672660309600.

The previous prime is 31400312412031. The next prime is 31400312412059. The reversal of 31400312412044 is 44021421300413.

It is a junction number, because it is equal to n+sod(n) for n = 31400312411998 and 31400312412016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6873971537 + ... + 6873976104.

It is an arithmetic number, because the mean of its divisors is an integer number (4587231863214).

Almost surely, 231400312412044 is an apocalyptic number.

It is an amenable number.

31400312412044 is a deficient number, since it is larger than the sum of its proper divisors (23646469946524).

31400312412044 is a wasteful number, since it uses less digits than its factorization.

31400312412044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13747948216 (or 13747948214 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 31400312412044 its reverse (44021421300413), we get a palindrome (75421733712457).

The spelling of 31400312412044 in words is "thirty-one trillion, four hundred billion, three hundred twelve million, four hundred twelve thousand, forty-four".

Divisors: 1 2 4 571 1142 2284 13747947641 27495895282 54991790564 7850078103011 15700156206022 31400312412044