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38782423679 = 535147142169
BaseRepresentation
bin100100000111100111…
…001101001001111111
310201002210222020210012
4210013213031021333
51113411300024204
625452201533435
72542031106416
oct440747151177
9121083866705
1038782423679
11154a1737a1a
1276241a427b
133870a45bbc
141c3c9c447d
15101eb7876e
hex9079cd27f

38782423679 has 8 divisors (see below), whose sum is σ = 39522122640. Its totient is φ = 38043019456.

The previous prime is 38782423651. The next prime is 38782423703. The reversal of 38782423679 is 97632428783.

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-38782423679 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 (38782423079) 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, 201707 + ... + 343875.

It is an arithmetic number, because the mean of its divisors is an integer number (4940265330).

Almost surely, 238782423679 is an apocalyptic number.

38782423679 is a deficient number, since it is larger than the sum of its proper divisors (739698961).

38782423679 is a wasteful number, since it uses less digits than its factorization.

38782423679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147369.

The product of its digits is 24385536, while the sum is 59.

The spelling of 38782423679 in words is "thirty-eight billion, seven hundred eighty-two million, four hundred twenty-three thousand, six hundred seventy-nine".

Divisors: 1 53 5147 142169 272791 7534957 731743843 38782423679