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38894602287 = 312964867429
BaseRepresentation
bin100100001110010011…
…001000100000101111
310201101122001111220110
4210032103020200233
51114124004233122
625511250151103
72544562443642
oct441623104057
9121348044813
1038894602287
1115549a97412
127655882493
13388b061a88
141c4d865a59
15102993690c
hex90e4c882f

38894602287 has 4 divisors (see below), whose sum is σ = 51859469720. Its totient is φ = 25929734856.

The previous prime is 38894602163. The next prime is 38894602333. The reversal of 38894602287 is 78220649883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38894602287 - 235 = 4534863919 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 (38894602987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6482433712 + ... + 6482433717.

It is an arithmetic number, because the mean of its divisors is an integer number (12964867430).

Almost surely, 238894602287 is an apocalyptic number.

38894602287 is a deficient number, since it is larger than the sum of its proper divisors (12964867433).

38894602287 is a wasteful number, since it uses less digits than its factorization.

38894602287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12964867432.

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 38894602287 in words is "thirty-eight billion, eight hundred ninety-four million, six hundred two thousand, two hundred eighty-seven".

Divisors: 1 3 12964867429 38894602287