Search a number
-
+
68338725 = 352713171931
BaseRepresentation
bin1000001001011…
…00010000100101
311202120222002220
410010230100211
5114443314400
610440422553
71456604160
oct404542045
9152528086
1068338725
1135636994
121aa77a59
1311209620
14910cad7
155eed7a0
hex412c425

68338725 has 192 divisors, whose sum is σ = 159989760. Its totient is φ = 24883200.

The previous prime is 68338717. The next prime is 68338733. The reversal of 68338725 is 52783386.

It is an interprime number because it is at equal distance from previous prime (68338717) and next prime (68338733).

It is not a de Polignac number, because 68338725 - 23 = 68338717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2204460 + ... + 2204490.

It is an arithmetic number, because the mean of its divisors is an integer number (833280).

Almost surely, 268338725 is an apocalyptic number.

68338725 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68338725 is an abundant number, since it is smaller than the sum of its proper divisors (91651035).

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

68338725 is a wasteful number, since it uses less digits than its factorization.

68338725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 95 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 68338725 is about 8266.7239581348. The cubic root of 68338725 is about 408.8421128059.

The spelling of 68338725 in words is "sixty-eight million, three hundred thirty-eight thousand, seven hundred twenty-five".