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38898861 = 3116311149
BaseRepresentation
bin1001010001100…
…0110010101101
32201012021012120
42110120302231
534424230421
63505423153
7651430521
oct224306255
981167176
1038898861
111aa59321
121103aab9
13809c5a1
145247d81
1536358c6
hex2518cad

38898861 has 8 divisors (see below), whose sum is σ = 51914400. Its totient is φ = 25907952.

The previous prime is 38898859. The next prime is 38898883. The reversal of 38898861 is 16889883.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38898861 - 21 = 38898859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38898851) 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, 2086 + ... + 9063.

It is an arithmetic number, because the mean of its divisors is an integer number (6489300).

Almost surely, 238898861 is an apocalyptic number.

It is an amenable number.

38898861 is a deficient number, since it is larger than the sum of its proper divisors (13015539).

38898861 is a wasteful number, since it uses less digits than its factorization.

38898861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12315.

The product of its digits is 663552, while the sum is 51.

The square root of 38898861 is about 6236.8951410137. The cubic root of 38898861 is about 338.8277420369.

The spelling of 38898861 in words is "thirty-eight million, eight hundred ninety-eight thousand, eight hundred sixty-one".

Divisors: 1 3 1163 3489 11149 33447 12966287 38898861