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68422183361 = 721396371089
BaseRepresentation
bin111111101110010001…
…111010100111000001
320112121110102001100022
4333232101322213001
52110112034331421
651233244503225
74641364651100
oct775621724701
9215543361308
1068422183361
11270215a2084
121131654ab15
1365b55aaa3c
143451258037
151ba6d447ab
hexfee47a9c1

68422183361 has 6 divisors (see below), whose sum is σ = 79593152130. Its totient is φ = 58647585696.

The previous prime is 68422183327. The next prime is 68422183387. The reversal of 68422183361 is 16338122486.

It can be written as a sum of positive squares in only one way, i.e., 68418341761 + 3841600 = 261569^2 + 1960^2 .

It is a de Polignac number, because none of the positive numbers 2k-68422183361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68422183061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 698185496 + ... + 698185593.

It is an arithmetic number, because the mean of its divisors is an integer number (13265525355).

Almost surely, 268422183361 is an apocalyptic number.

It is an amenable number.

68422183361 is a deficient number, since it is larger than the sum of its proper divisors (11170968769).

68422183361 is a wasteful number, since it uses less digits than its factorization.

68422183361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396371103 (or 1396371096 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The spelling of 68422183361 in words is "sixty-eight billion, four hundred twenty-two million, one hundred eighty-three thousand, three hundred sixty-one".

Divisors: 1 7 49 1396371089 9774597623 68422183361