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38608633021 = 75515519003
BaseRepresentation
bin100011111101010000…
…001111110010111101
310200122200221202211011
4203331100033302331
51113032302224041
625423032555221
72534520652210
oct437520176275
9120580852734
1038608633021
1115412626482
127595b52b11
133843a373aa
141c238a5777
15100e799e81
hex8fd40fcbd

38608633021 has 4 divisors (see below), whose sum is σ = 44124152032. Its totient is φ = 33093114012.

The previous prime is 38608633009. The next prime is 38608633027. The reversal of 38608633021 is 12033680683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38608633021 - 25 = 38608632989 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 (38608633027) 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, 2757759495 + ... + 2757759508.

It is an arithmetic number, because the mean of its divisors is an integer number (11031038008).

Almost surely, 238608633021 is an apocalyptic number.

It is an amenable number.

38608633021 is a deficient number, since it is larger than the sum of its proper divisors (5515519011).

38608633021 is an equidigital number, since it uses as much as digits as its factorization.

38608633021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515519010.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 38608633021 in words is "thirty-eight billion, six hundred eight million, six hundred thirty-three thousand, twenty-one".

Divisors: 1 7 5515519003 38608633021