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68779035 = 32513117571
BaseRepresentation
bin1000001100101…
…11110000011011
311210102100002200
410012113300123
5120101412120
610454101243
71463416653
oct406276033
9153370080
1068779035
1135907786
121b04a823
1311331b70
1491c5363
156088e90
hex4197c1b

68779035 has 24 divisors (see below), whose sum is σ = 128388624. Its totient is φ = 33860160.

The previous prime is 68779027. The next prime is 68779043. The reversal of 68779035 is 53097786.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68779027) and next prime (68779043).

It is not a de Polignac number, because 68779035 - 23 = 68779027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 58201 + ... + 59370.

It is an arithmetic number, because the mean of its divisors is an integer number (5349526).

Almost surely, 268779035 is an apocalyptic number.

68779035 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68779035 is a deficient number, since it is larger than the sum of its proper divisors (59609589).

68779035 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 68779035 = (35907786)11.

68779035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117595 (or 117592 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 68779035 is about 8293.3126674448. The cubic root of 68779035 is about 409.7182974699.

The spelling of 68779035 in words is "sixty-eight million, seven hundred seventy-nine thousand, thirty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 117571 352713 587855 1058139 1528423 1763565 4585269 5290695 7642115 13755807 22926345 68779035