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38524861457 = 177333309037
BaseRepresentation
bin100011111000010000…
…101011110000010001
310200102212022201211122
4203320100223300101
51112344331031312
625410441252025
72532452630225
oct437020536021
9120385281748
1038524861457
111537a309685
127571a94015
13382c586414
141c166da785
15100724db72
hex8f842bc11

38524861457 has 8 divisors (see below), whose sum is σ = 40796724456. Its totient is φ = 36253631232.

The previous prime is 38524861439. The next prime is 38524861481. The reversal of 38524861457 is 75416842583.

It can be written as a sum of positive squares in 4 ways, for example, as 848498641 + 37676362816 = 29129^2 + 194104^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38524861457 - 26 = 38524861393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38524861399 and 38524861408.

It is not an unprimeable number, because it can be changed into a prime (38524861657) 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, 29858 + ... + 279179.

It is an arithmetic number, because the mean of its divisors is an integer number (5099590557).

Almost surely, 238524861457 is an apocalyptic number.

It is an amenable number.

38524861457 is a deficient number, since it is larger than the sum of its proper divisors (2271862999).

38524861457 is a wasteful number, since it uses less digits than its factorization.

38524861457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316387.

The product of its digits is 6451200, while the sum is 53.

The spelling of 38524861457 in words is "thirty-eight billion, five hundred twenty-four million, eight hundred sixty-one thousand, four hundred fifty-seven".

Divisors: 1 17 7333 124661 309037 5253629 2266168321 38524861457