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68349492 = 22322637219
BaseRepresentation
bin1000001001011…
…10111000110100
311202121111212200
410010232320310
5114444140432
610440544500
71456650441
oct404567064
9152544780
1068349492
1135643a92
121aa82130
13112114b3
1491129c8
156001a7c
hex412ee34

68349492 has 36 divisors (see below), whose sum is σ = 173453280. Its totient is φ = 22693392.

The previous prime is 68349487. The next prime is 68349493. The reversal of 68349492 is 29494386.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68349493) 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, 5859 + ... + 13077.

Almost surely, 268349492 is an apocalyptic number.

It is an amenable number.

68349492 is an abundant number, since it is smaller than the sum of its proper divisors (105103788).

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

68349492 is a wasteful number, since it uses less digits than its factorization.

68349492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7492 (or 7487 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 68349492 is about 8267.3751578116. The cubic root of 68349492 is about 408.8635831697.

The spelling of 68349492 in words is "sixty-eight million, three hundred forty-nine thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 263 526 789 1052 1578 2367 3156 4734 7219 9468 14438 21657 28876 43314 64971 86628 129942 259884 1898597 3797194 5695791 7594388 11391582 17087373 22783164 34174746 68349492