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38099689 = 45198431
BaseRepresentation
bin1001000101010…
…1101011101001
32122200122221121
42101111223221
534223142224
63440335241
7641561545
oct221255351
978618847
1038099689
111a562951
1210914521
137b7c8c4
1450baa25
153528be4
hex2455ae9

38099689 has 4 divisors (see below), whose sum is σ = 38112640. Its totient is φ = 38086740.

The previous prime is 38099687. The next prime is 38099717. The reversal of 38099689 is 98699083.

38099689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 38099689 - 21 = 38099687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38099681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304 + ... + 8734.

It is an arithmetic number, because the mean of its divisors is an integer number (9528160).

Almost surely, 238099689 is an apocalyptic number.

It is an amenable number.

38099689 is a deficient number, since it is larger than the sum of its proper divisors (12951).

38099689 is an equidigital number, since it uses as much as digits as its factorization.

38099689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12950.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 38099689 is about 6172.4945524480. The cubic root of 38099689 is about 336.4912769203.

The spelling of 38099689 in words is "thirty-eight million, ninety-nine thousand, six hundred eighty-nine".

Divisors: 1 4519 8431 38099689