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68458501 = 193603079
BaseRepresentation
bin1000001010010…
…01100000000101
311202211001102001
410011021200011
5120011133001
610443145301
71460613316
oct405114005
9152731361
1068458501
1135708981
121ab15231
131124bcb7
14914060d
156024001
hex4149805

68458501 has 4 divisors (see below), whose sum is σ = 72061600. Its totient is φ = 64855404.

The previous prime is 68458499. The next prime is 68458513. The reversal of 68458501 is 10585486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68458501 - 21 = 68458499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68458591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1801521 + ... + 1801558.

It is an arithmetic number, because the mean of its divisors is an integer number (18015400).

Almost surely, 268458501 is an apocalyptic number.

It is an amenable number.

68458501 is a deficient number, since it is larger than the sum of its proper divisors (3603099).

68458501 is a wasteful number, since it uses less digits than its factorization.

68458501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603098.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 68458501 is about 8273.9652525255. The cubic root of 68458501 is about 409.0808300263.

The spelling of 68458501 in words is "sixty-eight million, four hundred fifty-eight thousand, five hundred one".

Divisors: 1 19 3603079 68458501