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31013254542430 = 2523134840237141
BaseRepresentation
bin1110000110100110101100…
…00001010011010001011110
311001210211122000212201000001
413003103112001103101132
513031110121130324210
6145543143100324514
76350430234034126
oct703232601232136
9131724560781001
1031013254542430
119977713747946
12358a6b024373a
13143c6ca74c8b4
14793099c9bc86
1538bad4ec203a
hex1c34d605345e

31013254542430 has 16 divisors (see below), whose sum is σ = 58250982445344. Its totient is φ = 11865940868320.

The previous prime is 31013254542409. The next prime is 31013254542437. The reversal of 31013254542430 is 3424545231013.

It is a self number, because there is not a number n which added to its sum of digits gives 31013254542430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013254542437) 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, 67420118341 + ... + 67420118800.

It is an arithmetic number, because the mean of its divisors is an integer number (3640686402834).

Almost surely, 231013254542430 is an apocalyptic number.

31013254542430 is a deficient number, since it is larger than the sum of its proper divisors (27237727902914).

31013254542430 is a wasteful number, since it uses less digits than its factorization.

31013254542430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134840237171.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 31013254542430 its reverse (3424545231013), we get a palindrome (34437799773443).

The spelling of 31013254542430 in words is "thirty-one trillion, thirteen billion, two hundred fifty-four million, five hundred forty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 134840237141 269680474282 674201185705 1348402371410 3101325454243 6202650908486 15506627271215 31013254542430