Search a number
-
+
15252450234031 = 176118181261023
BaseRepresentation
bin1101110111110011110011…
…1000001100111010101111
32000000010020111000000120101
43131330330320030322233
53444344004224442111
652234513502131531
73132644635603603
oct335747470147257
960003214000511
1015252450234031
11495058958792a
12186403a880ba7
138683b8b0509a
143aa3188a1503
151b6b40628bc1
hexddf3ce0ceaf

15252450234031 has 16 divisors (see below), whose sum is σ = 16505089106688. Its totient is φ = 14041904601600.

The previous prime is 15252450234023. The next prime is 15252450234107. The reversal of 15252450234031 is 13043205425251.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 15252450234031 - 23 = 15252450234023 is a prime.

It is a super-2 number, since 2×152524502340312 (a number of 27 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 (15252450234431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40442815 + ... + 40818208.

It is an arithmetic number, because the mean of its divisors is an integer number (1031568069168).

Almost surely, 215252450234031 is an apocalyptic number.

15252450234031 is a deficient number, since it is larger than the sum of its proper divisors (1252638872657).

15252450234031 is a wasteful number, since it uses less digits than its factorization.

15252450234031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81261282.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 15252450234031 its reverse (13043205425251), we get a palindrome (28295655659282).

The spelling of 15252450234031 in words is "fifteen trillion, two hundred fifty-two billion, four hundred fifty million, two hundred thirty-four thousand, thirty-one".

Divisors: 1 17 61 181 1037 3077 11041 187697 81261023 1381437391 4956922403 14708245163 84267680851 250040167771 897202954943 15252450234031