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38898863 = 83468661
BaseRepresentation
bin1001010001100…
…0110010101111
32201012021012122
42110120302233
534424230423
63505423155
7651430523
oct224306257
981167178
1038898863
111aa59323
121103aabb
13809c5a3
145247d83
1536358c8
hex2518caf

38898863 has 4 divisors (see below), whose sum is σ = 39367608. Its totient is φ = 38430120.

The previous prime is 38898859. The next prime is 38898883. The reversal of 38898863 is 36889883.

It is a happy number.

38898863 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 an emirpimes, since its reverse is a distinct semiprime: 36889883 = 180120483.

It is a cyclic number.

It is not a de Polignac number, because 38898863 - 22 = 38898859 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 (38898823) 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, 234248 + ... + 234413.

It is an arithmetic number, because the mean of its divisors is an integer number (9841902).

Almost surely, 238898863 is an apocalyptic number.

38898863 is a deficient number, since it is larger than the sum of its proper divisors (468745).

38898863 is an equidigital number, since it uses as much as digits as its factorization.

38898863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468744.

The product of its digits is 1990656, while the sum is 53.

The square root of 38898863 is about 6236.8953013499. The cubic root of 38898863 is about 338.8277478439.

The spelling of 38898863 in words is "thirty-eight million, eight hundred ninety-eight thousand, eight hundred sixty-three".

Divisors: 1 83 468661 38898863