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38842715389 = 312335377643
BaseRepresentation
bin100100001011001101…
…001100110011111101
310201021000102101110111
4210023031030303331
51114022213343024
625502154110021
72543362430122
oct441315146375
9121230371414
1038842715389
1115522777a85
12764041b311
13388039587a
141c469da749
1510250d7a94
hex90b34ccfd

38842715389 has 8 divisors (see below), whose sum is σ = 40267798272. Its totient is φ = 37428388320.

The previous prime is 38842715381. The next prime is 38842715393. The reversal of 38842715389 is 98351724883.

It is a happy number.

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 38842715389 - 23 = 38842715381 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 (38842715381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2681599 + ... + 2696044.

It is an arithmetic number, because the mean of its divisors is an integer number (5033474784).

Almost surely, 238842715389 is an apocalyptic number.

It is an amenable number.

38842715389 is a deficient number, since it is larger than the sum of its proper divisors (1425082883).

38842715389 is a wasteful number, since it uses less digits than its factorization.

38842715389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377907.

The product of its digits is 11612160, while the sum is 58.

The spelling of 38842715389 in words is "thirty-eight billion, eight hundred forty-two million, seven hundred fifteen thousand, three hundred eighty-nine".

Divisors: 1 31 233 7223 5377643 166706933 1252990819 38842715389