Search a number
-
+
12788765041 = 133118573691
BaseRepresentation
bin10111110100100010…
…10001000101110001
31020000021022120120111
423322101101011301
5202142410440131
65513003341321
7631626465163
oct137221210561
936007276514
1012788765041
115472a19508
12258ab21841
13128a6b29c0
148946a0933
154ecb28ab1
hex2fa451171

12788765041 has 16 divisors (see below), whose sum is σ = 13836670848. Its totient is φ = 11750140800.

The previous prime is 12788765039. The next prime is 12788765047. The reversal of 12788765041 is 14056788721.

It is a cyclic number.

It is not a de Polignac number, because 12788765041 - 21 = 12788765039 is a prime.

It is a super-2 number, since 2×127887650412 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12788765047) 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, 3463006 + ... + 3466696.

It is an arithmetic number, because the mean of its divisors is an integer number (864791928).

Almost surely, 212788765041 is an apocalyptic number.

It is an amenable number.

12788765041 is a deficient number, since it is larger than the sum of its proper divisors (1047905807).

12788765041 is a wasteful number, since it uses less digits than its factorization.

12788765041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872.

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 12788765041 in words is "twelve billion, seven hundred eighty-eight million, seven hundred sixty-five thousand, forty-one".

Divisors: 1 13 311 857 3691 4043 11141 47983 266527 1147901 3163187 3464851 14922713 41121431 983751157 12788765041