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68770260131 = 671026421793
BaseRepresentation
bin100000000001100000…
…1101110010010100011
320120111201101011220112
41000003001232102203
52111320141311011
651332001201535
74653122365136
oct1000301562243
9216451334815
1068770260131
1127190023331
12113b30302ab
13663c73c721
14348558421d
151bc769d58b
hex100306e4a3

68770260131 has 4 divisors (see below), whose sum is σ = 69796681992. Its totient is φ = 67743838272.

The previous prime is 68770260127. The next prime is 68770260241. The reversal of 68770260131 is 13106207786.

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

It is a cyclic number.

It is not a de Polignac number, because 68770260131 - 22 = 68770260127 is a prime.

It is a super-2 number, since 2×687702601312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68770260101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513210830 + ... + 513210963.

It is an arithmetic number, because the mean of its divisors is an integer number (17449170498).

Almost surely, 268770260131 is an apocalyptic number.

68770260131 is a deficient number, since it is larger than the sum of its proper divisors (1026421861).

68770260131 is a wasteful number, since it uses less digits than its factorization.

68770260131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026421860.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 68770260131 in words is "sixty-eight billion, seven hundred seventy million, two hundred sixty thousand, one hundred thirty-one".

Divisors: 1 67 1026421793 68770260131