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68241187 = 79748741
BaseRepresentation
bin1000001000101…
…00011100100011
311202102000022101
410010110130203
5114432204222
610434351231
71456016620
oct404243443
9152360271
1068241187
113557a683
121aa2b517
13111a4101
1490c5347
155ece927
hex4114723

68241187 has 4 divisors (see below), whose sum is σ = 77989936. Its totient is φ = 58492440.

The previous prime is 68241169. The next prime is 68241193. The reversal of 68241187 is 78114286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68241187 - 27 = 68241059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68241167) 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, 4874364 + ... + 4874377.

It is an arithmetic number, because the mean of its divisors is an integer number (19497484).

Almost surely, 268241187 is an apocalyptic number.

68241187 is a deficient number, since it is larger than the sum of its proper divisors (9748749).

68241187 is an equidigital number, since it uses as much as digits as its factorization.

68241187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9748748.

The product of its digits is 21504, while the sum is 37.

The square root of 68241187 is about 8260.8224166847. The cubic root of 68241187 is about 408.6475104573.

The spelling of 68241187 in words is "sixty-eight million, two hundred forty-one thousand, one hundred eighty-seven".

Divisors: 1 7 9748741 68241187