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67868334 = 2331256821
BaseRepresentation
bin1000000101110…
…01011010101110
311201201001212000
410002321122232
5114333241314
610422353130
71452604602
oct402713256
9151631760
1067868334
1135345536
121a88b7a6
13110a34a1
149029502
155e59209
hex40b96ae

67868334 has 16 divisors (see below), whose sum is σ = 150818640. Its totient is φ = 22622760.

The previous prime is 67868327. The next prime is 67868351. The reversal of 67868334 is 43386876.

It is a super-2 number, since 2×678683342 = 9212221519871112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67868334.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628357 + ... + 628464.

It is an arithmetic number, because the mean of its divisors is an integer number (9426165).

Almost surely, 267868334 is an apocalyptic number.

67868334 is an abundant number, since it is smaller than the sum of its proper divisors (82950306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67868334 is a wasteful number, since it uses less digits than its factorization.

67868334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256832 (or 1256826 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 67868334 is about 8238.2239590824. The cubic root of 67868334 is about 407.9019011557.

The spelling of 67868334 in words is "sixty-seven million, eight hundred sixty-eight thousand, three hundred thirty-four".

Divisors: 1 2 3 6 9 18 27 54 1256821 2513642 3770463 7540926 11311389 22622778 33934167 67868334