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38989423 = 117944867
BaseRepresentation
bin1001010010111…
…0111001101111
32201100212102201
42110232321233
534440130143
63511402331
7652255534
oct224567157
981325381
1038989423
1120010370
12110833a7
138101885
14526cd8b
15365264d
hex252ee6f

38989423 has 8 divisors (see below), whose sum is σ = 43073280. Its totient is φ = 34995480.

The previous prime is 38989421. The next prime is 38989429. The reversal of 38989423 is 32498983.

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 38989423 - 21 = 38989421 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 (38989421) 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, 21565 + ... + 23302.

It is an arithmetic number, because the mean of its divisors is an integer number (5384160).

Almost surely, 238989423 is an apocalyptic number.

38989423 is a deficient number, since it is larger than the sum of its proper divisors (4083857).

38989423 is a wasteful number, since it uses less digits than its factorization.

38989423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44957.

The product of its digits is 373248, while the sum is 46.

The square root of 38989423 is about 6244.1511032325. The cubic root of 38989423 is about 339.0904843984.

The spelling of 38989423 in words is "thirty-eight million, nine hundred eighty-nine thousand, four hundred twenty-three".

Divisors: 1 11 79 869 44867 493537 3544493 38989423