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68426199 = 3222733493
BaseRepresentation
bin1000001010000…
…01100111010111
311202202102002200
410011001213113
5120004114244
610442335543
71460420202
oct405014727
9152672080
1068426199
1135696686
121aaba5b3
131123a39a
149132939
156019669
hex41419d7

68426199 has 12 divisors (see below), whose sum is σ = 99276216. Its totient is φ = 45415152.

The previous prime is 68426161. The next prime is 68426213. The reversal of 68426199 is 99162486.

It is a happy number.

It is not a de Polignac number, because 68426199 - 212 = 68422103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68426159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14704 + ... + 18789.

It is an arithmetic number, because the mean of its divisors is an integer number (8273018).

Almost surely, 268426199 is an apocalyptic number.

68426199 is a deficient number, since it is larger than the sum of its proper divisors (30850017).

68426199 is a wasteful number, since it uses less digits than its factorization.

68426199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33726 (or 33723 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 68426199 is about 8272.0129956378. The cubic root of 68426199 is about 409.0164785935.

It can be divided in two parts, 6842 and 6199, that added together give a triangular number (13041 = T161).

The spelling of 68426199 in words is "sixty-eight million, four hundred twenty-six thousand, one hundred ninety-nine".

Divisors: 1 3 9 227 681 2043 33493 100479 301437 7602911 22808733 68426199