Search a number
-
+
38947231859 = 1271913160309
BaseRepresentation
bin100100010001011011…
…111001100001110011
310201112022002101002212
4210101123321201303
51114230442404414
625520410202335
72546102002634
oct442133714163
9121468071085
1038947231859
1115576773828
12766b4233ab
133898c2b033
141c5684588b
15102e38083e
hex9116f9873

38947231859 has 8 divisors (see below), whose sum is σ = 39274667520. Its totient is φ = 38620120896.

The previous prime is 38947231853. The next prime is 38947231901. The reversal of 38947231859 is 95813274983.

38947231859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38947231859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38947231798 and 38947231807.

It is not an unprimeable number, because it can be changed into a prime (38947231853) 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, 162797 + ... + 323105.

It is an arithmetic number, because the mean of its divisors is an integer number (4909333440).

Almost surely, 238947231859 is an apocalyptic number.

38947231859 is a deficient number, since it is larger than the sum of its proper divisors (327435661).

38947231859 is a wasteful number, since it uses less digits than its factorization.

38947231859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162349.

The product of its digits is 13063680, while the sum is 59.

The spelling of 38947231859 in words is "thirty-eight billion, nine hundred forty-seven million, two hundred thirty-one thousand, eight hundred fifty-nine".

Divisors: 1 127 1913 160309 242951 20359243 306671117 38947231859