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68026659 = 3103220151
BaseRepresentation
bin1000000111000…
…00000100100011
311202000010000220
410003200010203
5114403323114
610430014123
71454134311
oct403400443
9152003026
1068026659
1135443488
121a947343
131112a57c
14906b0b1
155e8b0a9
hex40e0123

68026659 has 8 divisors (see below), whose sum is σ = 91583232. Its totient is φ = 44910600.

The previous prime is 68026657. The next prime is 68026697. The reversal of 68026659 is 95662086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68026659 - 21 = 68026657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68026659.

It is not an unprimeable number, because it can be changed into a prime (68026657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109767 + ... + 110384.

It is an arithmetic number, because the mean of its divisors is an integer number (11447904).

Almost surely, 268026659 is an apocalyptic number.

68026659 is a deficient number, since it is larger than the sum of its proper divisors (23556573).

68026659 is a wasteful number, since it uses less digits than its factorization.

68026659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220257.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 68026659 is about 8247.8275321444. The cubic root of 68026659 is about 408.2188428519.

The spelling of 68026659 in words is "sixty-eight million, twenty-six thousand, six hundred fifty-nine".

Divisors: 1 3 103 309 220151 660453 22675553 68026659