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31404113001 = 328447413087
BaseRepresentation
bin11101001111110101…
…001011110001101001
310000001121101020022100
4131033311023301221
51003303423104001
622232111044013
72161136361522
oct351765136151
9100047336270
1031404113001
11123558919a8
126105210609
132c662539b1
14173cb0b849
15c3c032586
hex74fd4bc69

31404113001 has 12 divisors (see below), whose sum is σ = 45366976512. Its totient is φ = 20933546136.

The previous prime is 31404112997. The next prime is 31404113053. The reversal of 31404113001 is 10031140413.

It is not a de Polignac number, because 31404113001 - 22 = 31404112997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31404118001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130521 + ... + 282566.

It is an arithmetic number, because the mean of its divisors is an integer number (3780581376).

Almost surely, 231404113001 is an apocalyptic number.

It is an amenable number.

31404113001 is a deficient number, since it is larger than the sum of its proper divisors (13962863511).

31404113001 is a wasteful number, since it uses less digits than its factorization.

31404113001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421540 (or 421537 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31404113001 its reverse (10031140413), we get a palindrome (41435253414).

The spelling of 31404113001 in words is "thirty-one billion, four hundred four million, one hundred thirteen thousand, one".

Divisors: 1 3 9 8447 25341 76023 413087 1239261 3717783 3489345889 10468037667 31404113001