Search a number
-
+
122630712081271 = 877139829774323
BaseRepresentation
bin11011111000100000110000…
…000010000011101101110111
3121002012101022011200022122021
4123320200300002003231313
5112033140144243100041
61112451434342414011
734554530236005622
oct3370406002035567
9532171264608567
10122630712081271
113608a435aa2839
12119067a1431307
1353570463929a4
14223d502a0cdb9
15e29d8d886cd1
hex6f8830083b77

122630712081271 has 4 divisors (see below), whose sum is σ = 122770541856472. Its totient is φ = 122490882306072.

The previous prime is 122630712081259. The next prime is 122630712081331. The reversal of 122630712081271 is 172180217036221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122630712081271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122630712081211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69914886285 + ... + 69914888038.

It is an arithmetic number, because the mean of its divisors is an integer number (30692635464118).

Almost surely, 2122630712081271 is an apocalyptic number.

122630712081271 is a deficient number, since it is larger than the sum of its proper divisors (139829775201).

122630712081271 is an equidigital number, since it uses as much as digits as its factorization.

122630712081271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139829775200.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 122630712081271 in words is "one hundred twenty-two trillion, six hundred thirty billion, seven hundred twelve million, eighty-one thousand, two hundred seventy-one".

Divisors: 1 877 139829774323 122630712081271