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68999465 = 544331151
BaseRepresentation
bin1000001110011…
…01100100101001
311210211112110202
410013031210221
5120130440330
610502521545
71465325423
oct407154451
9153745422
1068999465
1135a48357
121b1362b5
13113ab2b2
149241813
1560ce445
hex41cd929

68999465 has 8 divisors (see below), whose sum is σ = 82988928. Its totient is φ = 55073200.

The previous prime is 68999423. The next prime is 68999467. The reversal of 68999465 is 56499986.

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

It is not a de Polignac number, because 68999465 - 26 = 68999401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68999465.

It is not an unprimeable number, because it can be changed into a prime (68999467) 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, 13361 + ... + 17790.

It is an arithmetic number, because the mean of its divisors is an integer number (10373616).

Almost surely, 268999465 is an apocalyptic number.

It is an amenable number.

68999465 is a deficient number, since it is larger than the sum of its proper divisors (13989463).

68999465 is a wasteful number, since it uses less digits than its factorization.

68999465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31599.

The product of its digits is 4199040, while the sum is 56.

The square root of 68999465 is about 8306.5916596400. The cubic root of 68999465 is about 410.1555329009.

The spelling of 68999465 in words is "sixty-eight million, nine hundred ninety-nine thousand, four hundred sixty-five".

Divisors: 1 5 443 2215 31151 155755 13799893 68999465