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122630406461 = 196454231919
BaseRepresentation
bin111001000110101010…
…1111000000100111101
3102201112022202002210222
41302031111320010331
54002121341001321
6132200255111125
711600616153623
oct1621525700475
9381468662728
10122630406461
1148009738462
121b9248124a5
13b7441452b4
145d14821513
1532cad903ab
hex1c8d57813d

122630406461 has 4 divisors (see below), whose sum is σ = 129084638400. Its totient is φ = 116176174524.

The previous prime is 122630406427. The next prime is 122630406497. The reversal of 122630406461 is 164604036221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122630406461 - 230 = 121556664637 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 (122630400461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3227115941 + ... + 3227115978.

It is an arithmetic number, because the mean of its divisors is an integer number (32271159600).

Almost surely, 2122630406461 is an apocalyptic number.

It is an amenable number.

122630406461 is a deficient number, since it is larger than the sum of its proper divisors (6454231939).

122630406461 is an equidigital number, since it uses as much as digits as its factorization.

122630406461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454231938.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 122630406461 in words is "one hundred twenty-two billion, six hundred thirty million, four hundred six thousand, four hundred sixty-one".

Divisors: 1 19 6454231919 122630406461