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38930379 = 312976793
BaseRepresentation
bin1001010010000…
…0011111001011
32201020212102220
42110200133023
534431233004
63510225123
7651621435
oct224403713
981225386
1038930379
111aa7aa74
12110551a3
1380b0a37
145255655
15363edd9
hex25207cb

38930379 has 4 divisors (see below), whose sum is σ = 51907176. Its totient is φ = 25953584.

The previous prime is 38930377. The next prime is 38930387. The reversal of 38930379 is 97303983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38930379 - 21 = 38930377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38930379.

It is not an unprimeable number, because it can be changed into a prime (38930371) 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, 6488394 + ... + 6488399.

It is an arithmetic number, because the mean of its divisors is an integer number (12976794).

Almost surely, 238930379 is an apocalyptic number.

38930379 is a deficient number, since it is larger than the sum of its proper divisors (12976797).

38930379 is a wasteful number, since it uses less digits than its factorization.

38930379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12976796.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 38930379 is about 6239.4213674026. The cubic root of 38930379 is about 338.9192296324.

The spelling of 38930379 in words is "thirty-eight million, nine hundred thirty thousand, three hundred seventy-nine".

Divisors: 1 3 12976793 38930379