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31404201040231 = 1715231112128513
BaseRepresentation
bin1110010001111110111000…
…01111110101100101100111
311010012012201202200111202121
413020333130033311211213
513104011300431241411
6150442520224450411
76420610243322035
oct710773417654547
9133165652614677
1031404201040231
11a0084a0866018
123632417479a07
13146a5324c7436
147a7d858bd555
15396d66b71571
hex1c8fdc3f5967

31404201040231 has 8 divisors (see below), whose sum is σ = 33251728038624. Its totient is φ = 29556698603520.

The previous prime is 31404201040193. The next prime is 31404201040243. The reversal of 31404201040231 is 13204010240413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31404201040231 - 215 = 31404201007463 is a prime.

It is a super-2 number, since 2×314042010402312 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31404201040196 and 31404201040205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404201049231) 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, 3474970 + ... + 8653543.

It is an arithmetic number, because the mean of its divisors is an integer number (4156466004828).

Almost surely, 231404201040231 is an apocalyptic number.

31404201040231 is a deficient number, since it is larger than the sum of its proper divisors (1847526998393).

31404201040231 is a wasteful number, since it uses less digits than its factorization.

31404201040231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12280841.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31404201040231 its reverse (13204010240413), we get a palindrome (44608211280644).

The spelling of 31404201040231 in words is "thirty-one trillion, four hundred four billion, two hundred one million, forty thousand, two hundred thirty-one".

Divisors: 1 17 152311 2589287 12128513 206184721 1847305943543 31404201040231