Search a number
-
+
68042924901 = 3271080046427
BaseRepresentation
bin111111010111101011…
…001010001101100101
320111122000202201112200
4333113223022031211
52103322442044101
651131500005113
74626111214230
oct772753121545
9214560681480
1068042924901
1126947503636
121122b530799
136554b4c253
143416b32417
151b838cb986
hexfd7aca365

68042924901 has 12 divisors (see below), whose sum is σ = 112324828512. Its totient is φ = 38881671336.

The previous prime is 68042924899. The next prime is 68042924903. The reversal of 68042924901 is 10942924086.

It is an interprime number because it is at equal distance from previous prime (68042924899) and next prime (68042924903).

It is not a de Polignac number, because 68042924901 - 21 = 68042924899 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68042924903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 540023151 + ... + 540023276.

It is an arithmetic number, because the mean of its divisors is an integer number (9360402376).

Almost surely, 268042924901 is an apocalyptic number.

It is an amenable number.

68042924901 is a deficient number, since it is larger than the sum of its proper divisors (44281903611).

68042924901 is a wasteful number, since it uses less digits than its factorization.

68042924901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080046440 (or 1080046437 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 68042924901 in words is "sixty-eight billion, forty-two million, nine hundred twenty-four thousand, nine hundred one".

Divisors: 1 3 7 9 21 63 1080046427 3240139281 7560324989 9720417843 22680974967 68042924901