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68822099 = 179384481
BaseRepresentation
bin1000001101000…
…10010001010011
311210111112011122
410012202101103
5120104301344
610455032455
71463656343
oct406422123
9153445148
1068822099
1135937075
121b06b72b
1311348648
1491d6d23
156096aee
hex41a2453

68822099 has 4 divisors (see below), whose sum is σ = 69206760. Its totient is φ = 68437440.

The previous prime is 68822051. The next prime is 68822101. The reversal of 68822099 is 99022886.

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 68822099 - 212 = 68818003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68821099) 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, 192062 + ... + 192419.

It is an arithmetic number, because the mean of its divisors is an integer number (17301690).

Almost surely, 268822099 is an apocalyptic number.

68822099 is a deficient number, since it is larger than the sum of its proper divisors (384661).

68822099 is a wasteful number, since it uses less digits than its factorization.

68822099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384660.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 68822099 is about 8295.9085698915. The cubic root of 68822099 is about 409.8037907097.

The spelling of 68822099 in words is "sixty-eight million, eight hundred twenty-two thousand, ninety-nine".

Divisors: 1 179 384481 68822099