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68814485 = 5192113433
BaseRepresentation
bin1000001101000…
…00011010010101
311210111010201122
410012200122111
5120104030420
610454533325
71463625215
oct406403225
9153433648
1068814485
1135931383
121b067245
131134503c
1491d4245
156094725
hex41a0695

68814485 has 16 divisors (see below), whose sum is σ = 87360960. Its totient is φ = 51891840.

The previous prime is 68814481. The next prime is 68814509. The reversal of 68814485 is 58441886.

It is not a de Polignac number, because 68814485 - 22 = 68814481 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68814481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18329 + ... + 21761.

It is an arithmetic number, because the mean of its divisors is an integer number (5460060).

Almost surely, 268814485 is an apocalyptic number.

It is an amenable number.

68814485 is a deficient number, since it is larger than the sum of its proper divisors (18546475).

68814485 is a wasteful number, since it uses less digits than its factorization.

68814485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668.

The product of its digits is 245760, while the sum is 44.

The square root of 68814485 is about 8295.4496562875. The cubic root of 68814485 is about 409.7886775354.

The spelling of 68814485 in words is "sixty-eight million, eight hundred fourteen thousand, four hundred eighty-five".

Divisors: 1 5 19 95 211 1055 3433 4009 17165 20045 65227 326135 724363 3621815 13762897 68814485