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38536789 = 307125527
BaseRepresentation
bin1001001100000…
…0011001010101
32200111212112111
42103000121111
534331134124
63453551021
7645362104
oct223003125
980455474
1038536789
111a831295
1210aa5471
137ca3845
14519203b
1535b3494
hex24c0655

38536789 has 4 divisors (see below), whose sum is σ = 38662624. Its totient is φ = 38410956.

The previous prime is 38536781. The next prime is 38536819. The reversal of 38536789 is 98763583.

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.

It is a cyclic number.

It is not a de Polignac number, because 38536789 - 23 = 38536781 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 (38536781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62457 + ... + 63070.

It is an arithmetic number, because the mean of its divisors is an integer number (9665656).

Almost surely, 238536789 is an apocalyptic number.

It is an amenable number.

38536789 is a deficient number, since it is larger than the sum of its proper divisors (125835).

38536789 is a wasteful number, since it uses less digits than its factorization.

38536789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125834.

The product of its digits is 1088640, while the sum is 49.

The square root of 38536789 is about 6207.8006572376. The cubic root of 38536789 is about 337.7731896892.

The spelling of 38536789 in words is "thirty-eight million, five hundred thirty-six thousand, seven hundred eighty-nine".

Divisors: 1 307 125527 38536789