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38999910112021 = 181563938210519
BaseRepresentation
bin10001101111000010111111…
…10010011101101100010101
312010002100120210100210201001
420313201133302131230111
520102433303442041041
6214540151131103301
711133436062206425
oct1067413762355425
9163070523323631
1038999910112021
1111476850594aa1
12445a53aba1b31
13189b8a27b8c91
1498b86a154485
1547972564c131
hex23785fc9db15

38999910112021 has 8 divisors (see below), whose sum is σ = 39222334569600. Its totient is φ = 38777562087120.

The previous prime is 38999910111977. The next prime is 38999910112201. The reversal of 38999910112021 is 12021101999983.

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 38999910112021 - 213 = 38999910103829 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 (38999910118021) 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, 18084601 + ... + 20125918.

It is an arithmetic number, because the mean of its divisors is an integer number (4902791821200).

Almost surely, 238999910112021 is an apocalyptic number.

It is an amenable number.

38999910112021 is a deficient number, since it is larger than the sum of its proper divisors (222424457579).

38999910112021 is a wasteful number, since it uses less digits than its factorization.

38999910112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38216339.

The product of its (nonzero) digits is 629856, while the sum is 55.

The spelling of 38999910112021 in words is "thirty-eight trillion, nine hundred ninety-nine billion, nine hundred ten million, one hundred twelve thousand, twenty-one".

Divisors: 1 181 5639 1020659 38210519 6916103939 215469116641 38999910112021