Search a number
-
+
152123131205 = 51511791125629
BaseRepresentation
bin1000110110101100111…
…1101100010101000101
3112112122201111202100122
42031223033230111011
54443022010144310
6153515010351325
713663516165103
oct2155317542505
9475581452318
10152123131205
11595735a6041
122559588b545
13114643a8a06
14751173cc73
153e551b5555
hex236b3ec545

152123131205 has 16 divisors (see below), whose sum is σ = 184783420800. Its totient is φ = 120217070400.

The previous prime is 152123131201. The next prime is 152123131207. The reversal of 152123131205 is 502131321251.

It is not a de Polignac number, because 152123131205 - 22 = 152123131201 is a prime.

It is a super-2 number, since 2×1521231312052 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152123131201) 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, 427670 + ... + 697959.

It is an arithmetic number, because the mean of its divisors is an integer number (11548963800).

Almost surely, 2152123131205 is an apocalyptic number.

It is an amenable number.

152123131205 is a deficient number, since it is larger than the sum of its proper divisors (32660289595).

152123131205 is a wasteful number, since it uses less digits than its factorization.

152123131205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125964.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 152123131205 its reverse (502131321251), we get a palindrome (654254452456).

The spelling of 152123131205 in words is "one hundred fifty-two billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred five".

Divisors: 1 5 151 179 755 895 27029 135145 1125629 5628145 169969979 201487591 849849895 1007437955 30424626241 152123131205