Search a number
-
+
245112213111031 = 7317411103179813
BaseRepresentation
bin110111101110110110100010…
…011001001000000011110111
31012010212111110120102212021101
4313232312202121020003313
5224111404303024023111
62225150555102430531
7102425526066010630
oct6756664231100367
91163774416385241
10245112213111031
117111156226a072
12235a8480292447
13a69cca0789a46
1444756cc95a887
151d50de7a31bc1
hexdeeda26480f7

245112213111031 has 8 divisors (see below), whose sum is σ = 280137069247904. Its totient is φ = 210089563397280.

The previous prime is 245112213111001. The next prime is 245112213111049. The reversal of 245112213111031 is 130111312211542.

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

It is not a de Polignac number, because 245112213111031 - 27 = 245112213110903 is a prime.

It is a super-2 number, since 2×2451122131110312 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245112213111001) 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, 551367720 + ... + 551812093.

It is an arithmetic number, because the mean of its divisors is an integer number (35017133655988).

Almost surely, 2245112213111031 is an apocalyptic number.

245112213111031 is a deficient number, since it is larger than the sum of its proper divisors (35024856136873).

245112213111031 is a wasteful number, since it uses less digits than its factorization.

245112213111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103211561.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 245112213111031 its reverse (130111312211542), we get a palindrome (375223525322573).

The spelling of 245112213111031 in words is "two hundred forty-five trillion, one hundred twelve billion, two hundred thirteen million, one hundred eleven thousand, thirty-one".

Divisors: 1 7 31741 222187 1103179813 7722258691 35016030444433 245112213111031