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38988379 = 50037793
BaseRepresentation
bin1001010010111…
…0101001011011
32201100211000001
42110232221123
534440112004
63511353431
7652252513
oct224565133
981324001
1038988379
112000a601
1211082877
138101261
14526c843
1536521a4
hex252ea5b

38988379 has 4 divisors (see below), whose sum is σ = 39001176. Its totient is φ = 38975584.

The previous prime is 38988373. The next prime is 38988407. The reversal of 38988379 is 97388983.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 97388983 = 593164231.

It is a cyclic number.

It is not a de Polignac number, because 38988379 - 23 = 38988371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38988371) 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, 1107 + ... + 8899.

It is an arithmetic number, because the mean of its divisors is an integer number (9750294).

Almost surely, 238988379 is an apocalyptic number.

38988379 is a deficient number, since it is larger than the sum of its proper divisors (12797).

38988379 is an equidigital number, since it uses as much as digits as its factorization.

38988379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12796.

The product of its digits is 2612736, while the sum is 55.

The square root of 38988379 is about 6244.0675044397. The cubic root of 38988379 is about 339.0874578201.

The spelling of 38988379 in words is "thirty-eight million, nine hundred eighty-eight thousand, three hundred seventy-nine".

Divisors: 1 5003 7793 38988379