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68148501 = 322716167
BaseRepresentation
bin1000000111111…
…01110100010101
311202020022011120
410003331310111
5114421223001
610432354153
71455152451
oct403756425
9152208146
1068148501
1135516a83
121a9a5959
1311170b75
14909d661
155eb2236
hex40fdd15

68148501 has 4 divisors (see below), whose sum is σ = 90864672. Its totient is φ = 45432332.

The previous prime is 68148499. The next prime is 68148527. The reversal of 68148501 is 10584186.

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 68148501 - 21 = 68148499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68148541) 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, 11358081 + ... + 11358086.

It is an arithmetic number, because the mean of its divisors is an integer number (22716168).

Almost surely, 268148501 is an apocalyptic number.

It is an amenable number.

68148501 is a deficient number, since it is larger than the sum of its proper divisors (22716171).

68148501 is a wasteful number, since it uses less digits than its factorization.

68148501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22716170.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 68148501 is about 8255.2105363825. The cubic root of 68148501 is about 408.4624166471.

The spelling of 68148501 in words is "sixty-eight million, one hundred forty-eight thousand, five hundred one".

Divisors: 1 3 22716167 68148501