Search a number
-
+
12752147247 = 372413920959
BaseRepresentation
bin10111110000001011…
…00101001100101111
31012220201102012101220
423320011211030233
5202104022202442
65505214434423
7631003314600
oct137005451457
935821365356
1012752147247
115454288a74
12257a802a13
131282c31778
1488d88bda7
154e97e3eec
hex2f816532f

12752147247 has 24 divisors (see below), whose sum is σ = 19784563200. Its totient is φ = 7284833136.

The previous prime is 12752147231. The next prime is 12752147249. The reversal of 12752147247 is 74274125721.

It is not a de Polignac number, because 12752147247 - 24 = 12752147231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12752147199 and 12752147208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12752147249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 597954 + ... + 618912.

It is an arithmetic number, because the mean of its divisors is an integer number (824356800).

Almost surely, 212752147247 is an apocalyptic number.

12752147247 is a deficient number, since it is larger than the sum of its proper divisors (7032415953).

12752147247 is a wasteful number, since it uses less digits than its factorization.

12752147247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25115 (or 25108 counting only the distinct ones).

The product of its digits is 219520, while the sum is 42.

The spelling of 12752147247 in words is "twelve billion, seven hundred fifty-two million, one hundred forty-seven thousand, two hundred forty-seven".

Divisors: 1 3 7 21 49 147 4139 12417 20959 28973 62877 86919 146713 202811 440139 608433 1026991 3080973 86749301 260247903 607245107 1821735321 4250715749 12752147247