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38191034023 = 39581964883
BaseRepresentation
bin100011100100010111…
…001110111010100111
310122120121011112200121
4203210113032322213
51111203401042043
625313354222411
72521260301342
oct434427167247
9118517145617
1038191034023
111521893013a
12749a124a07
1337a83734ac
141bc423d459
15ed7cabded
hex8e45ceea7

38191034023 has 4 divisors (see below), whose sum is σ = 38192038488. Its totient is φ = 38190029560.

The previous prime is 38191033973. The next prime is 38191034039. The reversal of 38191034023 is 32043019183.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38191034023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38191034023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38191034093) 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, 442861 + ... + 522022.

It is an arithmetic number, because the mean of its divisors is an integer number (9548009622).

Almost surely, 238191034023 is an apocalyptic number.

38191034023 is a deficient number, since it is larger than the sum of its proper divisors (1004465).

38191034023 is an equidigital number, since it uses as much as digits as its factorization.

38191034023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004464.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 38191034023 in words is "thirty-eight billion, one hundred ninety-one million, thirty-four thousand, twenty-three".

Divisors: 1 39581 964883 38191034023