Search a number
-
+
38197710445 = 57639542089
BaseRepresentation
bin100011100100110000…
…101100111001101101
310122121001201202000111
4203210300230321231
51111212103213240
625314153300021
72521401116206
oct434460547155
9118531652014
1038197710445
1115221680244
1274a0404611
1337a987033b
141bc509a5ad
15ed867a1ea
hex8e4c2ce6d

38197710445 has 4 divisors (see below), whose sum is σ = 45837252540. Its totient is φ = 30558168352.

The previous prime is 38197710407. The next prime is 38197710451. The reversal of 38197710445 is 54401779183.

38197710445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14500494724 + 23697215721 = 120418^2 + 153939^2 .

It is a cyclic number.

It is not a de Polignac number, because 38197710445 - 211 = 38197708397 is a prime.

It is a super-3 number, since 3×381977104453 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3819771040 + ... + 3819771049.

It is an arithmetic number, because the mean of its divisors is an integer number (11459313135).

Almost surely, 238197710445 is an apocalyptic number.

It is an amenable number.

38197710445 is a deficient number, since it is larger than the sum of its proper divisors (7639542095).

38197710445 is an equidigital number, since it uses as much as digits as its factorization.

38197710445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639542094.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 38197710445 in words is "thirty-eight billion, one hundred ninety-seven million, seven hundred ten thousand, four hundred forty-five".

Divisors: 1 5 7639542089 38197710445