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34193387 = 237120939
BaseRepresentation
bin1000001001101…
…1111111101011
32101100012111202
42002123333223
532223142022
63220514415
7563432114
oct202337753
971305452
1034193387
1118334aa8
12b54ba0b
137112897
14478120b
153006592
hex209bfeb

34193387 has 8 divisors (see below), whose sum is σ = 36184320. Its totient is φ = 32244520.

The previous prime is 34193381. The next prime is 34193389. The reversal of 34193387 is 78339143.

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

It is a cyclic number.

It is not a de Polignac number, because 34193387 - 24 = 34193371 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 34193387.

It is not an unprimeable number, because it can be changed into a prime (34193381) 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, 8837 + ... + 12102.

It is an arithmetic number, because the mean of its divisors is an integer number (4523040).

Almost surely, 234193387 is an apocalyptic number.

34193387 is a deficient number, since it is larger than the sum of its proper divisors (1990933).

34193387 is a wasteful number, since it uses less digits than its factorization.

34193387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21033.

The product of its digits is 54432, while the sum is 38.

The square root of 34193387 is about 5847.5111799808. The cubic root of 34193387 is about 324.5742337901.

The spelling of 34193387 in words is "thirty-four million, one hundred ninety-three thousand, three hundred eighty-seven".

Divisors: 1 23 71 1633 20939 481597 1486669 34193387