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31431113144201 = 157468074277099
BaseRepresentation
bin1110010010110001000000…
…10101010111011110001001
311010021210012022120001010002
413021120200111113132021
513104431404431103301
6150503130512332345
76422552166404411
oct711304025273611
9133253168501102
1031431113144201
11a018950a65061
1236376882440b5
13146cc30c11904
147a93b9ba1641
153978de64316b
hex1c9620557789

31431113144201 has 8 divisors (see below), whose sum is σ = 31631994494400. Its totient is φ = 31230240442128.

The previous prime is 31431113144183. The next prime is 31431113144203. The reversal of 31431113144201 is 10244131113413.

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 31431113144201 - 222 = 31431108949897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31431113144203) 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, 5210150 + ... + 9487248.

It is an arithmetic number, because the mean of its divisors is an integer number (3953999311800).

Almost surely, 231431113144201 is an apocalyptic number.

It is an amenable number.

31431113144201 is a deficient number, since it is larger than the sum of its proper divisors (200881350199).

31431113144201 is a wasteful number, since it uses less digits than its factorization.

31431113144201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324063.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 31431113144201 its reverse (10244131113413), we get a palindrome (41675244257614).

The spelling of 31431113144201 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred thirteen million, one hundred forty-four thousand, two hundred one".

Divisors: 1 157 46807 4277099 7348699 671504543 200198172893 31431113144201