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68451796 = 2274159627
BaseRepresentation
bin1000001010001…
…11110111010100
311202210201012201
410011013313110
5120010424141
610443054244
71460554630
oct405076724
9152721181
1068451796
1135703936
121ab11384
1311248c2a
14913bdc0
156022031
hex4147dd4

68451796 has 24 divisors (see below), whose sum is σ = 140245056. Its totient is φ = 28620480.

The previous prime is 68451781. The next prime is 68451811. The reversal of 68451796 is 69715486.

It is an interprime number because it is at equal distance from previous prime (68451781) and next prime (68451811).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 28666 + ... + 30961.

It is an arithmetic number, because the mean of its divisors is an integer number (5843544).

Almost surely, 268451796 is an apocalyptic number.

It is an amenable number.

68451796 is an abundant number, since it is smaller than the sum of its proper divisors (71793260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68451796 is a wasteful number, since it uses less digits than its factorization.

68451796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59679 (or 59677 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 68451796 is about 8273.5600559856. The cubic root of 68451796 is about 409.0674741173.

The spelling of 68451796 in words is "sixty-eight million, four hundred fifty-one thousand, seven hundred ninety-six".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 59627 119254 238508 417389 834778 1669556 2444707 4889414 9778828 17112949 34225898 68451796