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38364989 = 1323128311
BaseRepresentation
bin1001001001011…
…0011100111101
32200012010212112
42102112130331
534310134424
63450143405
7644045165
oct222263475
980163775
1038364989
111a724203
1210a21b65
137c435a0
1451495a5
15357c60e
hex249673d

38364989 has 8 divisors (see below), whose sum is σ = 43112832. Its totient is φ = 33873840.

The previous prime is 38364979. The next prime is 38365021. The reversal of 38364989 is 98946383.

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

It is not a de Polignac number, because 38364989 - 220 = 37316413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38364959) 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, 63857 + ... + 64454.

It is an arithmetic number, because the mean of its divisors is an integer number (5389104).

Almost surely, 238364989 is an apocalyptic number.

It is an amenable number.

38364989 is a deficient number, since it is larger than the sum of its proper divisors (4747843).

38364989 is a wasteful number, since it uses less digits than its factorization.

38364989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128347.

The product of its digits is 1119744, while the sum is 50.

The square root of 38364989 is about 6193.9477718173. The cubic root of 38364989 is about 337.2705022317.

The spelling of 38364989 in words is "thirty-eight million, three hundred sixty-four thousand, nine hundred eighty-nine".

Divisors: 1 13 23 299 128311 1668043 2951153 38364989