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39293189 = 133378969
BaseRepresentation
bin1001010111100…
…1000100000101
32201221022010022
42111321010011
540024340224
63522104525
7654662255
oct225710405
981838108
1039293189
11201a8611
12111ab145
1381a9c10
14530b965
1536b265e
hex2579105

39293189 has 8 divisors (see below), whose sum is σ = 42446040. Its totient is φ = 36158976.

The previous prime is 39293183. The next prime is 39293201. The reversal of 39293189 is 98139293.

It can be written as a sum of positive squares in 4 ways, for example, as 330625 + 38962564 = 575^2 + 6242^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-39293189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39293183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104 + ... + 8865.

It is an arithmetic number, because the mean of its divisors is an integer number (5305755).

Almost surely, 239293189 is an apocalyptic number.

It is an amenable number.

39293189 is a deficient number, since it is larger than the sum of its proper divisors (3152851).

39293189 is a wasteful number, since it uses less digits than its factorization.

39293189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9319.

The product of its digits is 104976, while the sum is 44.

The square root of 39293189 is about 6268.4279528443. The cubic root of 39293189 is about 339.9688235543.

The spelling of 39293189 in words is "thirty-nine million, two hundred ninety-three thousand, one hundred eighty-nine".

Divisors: 1 13 337 4381 8969 116597 3022553 39293189