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38012399 = 234673539
BaseRepresentation
bin1001000100000…
…0010111101111
32122112020012122
42101000113233
534212344044
63434423155
7641046215
oct221002757
978466178
1038012399
111a503307
1210891abb
137b4bc59
145096cb5
15350cdee
hex24405ef

38012399 has 8 divisors (see below), whose sum is σ = 39761280. Its totient is φ = 36271576.

The previous prime is 38012393. The next prime is 38012411. The reversal of 38012399 is 99321083.

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 38012399 - 224 = 21235183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38012393) 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, 8972 + ... + 12510.

It is an arithmetic number, because the mean of its divisors is an integer number (4970160).

Almost surely, 238012399 is an apocalyptic number.

38012399 is a deficient number, since it is larger than the sum of its proper divisors (1748881).

38012399 is a wasteful number, since it uses less digits than its factorization.

38012399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 38012399 is about 6165.4196126460. The cubic root of 38012399 is about 336.2341026098.

The spelling of 38012399 in words is "thirty-eight million, twelve thousand, three hundred ninety-nine".

Divisors: 1 23 467 3539 10741 81397 1652713 38012399