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34387239 = 315773009
BaseRepresentation
bin1000001100101…
…1010100100111
32101201001102110
42003023110213
532300342424
63225012103
7565200225
oct203132447
971631373
1034387239
1118457707
12b624033
13717cba3
1447d1b15
153043c29
hex20cb527

34387239 has 8 divisors (see below), whose sum is σ = 46142320. Its totient is φ = 22778496.

The previous prime is 34387237. The next prime is 34387247. The reversal of 34387239 is 93278343.

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

It is not a de Polignac number, because 34387239 - 21 = 34387237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34387197 and 34387206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34387237) 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, 36034 + ... + 36975.

It is an arithmetic number, because the mean of its divisors is an integer number (5767790).

Almost surely, 234387239 is an apocalyptic number.

34387239 is a deficient number, since it is larger than the sum of its proper divisors (11755081).

34387239 is a wasteful number, since it uses less digits than its factorization.

34387239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73169.

The product of its digits is 108864, while the sum is 39.

The square root of 34387239 is about 5864.0633523181. The cubic root of 34387239 is about 325.1864460763.

The spelling of 34387239 in words is "thirty-four million, three hundred eighty-seven thousand, two hundred thirty-nine".

Divisors: 1 3 157 471 73009 219027 11462413 34387239