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38280318113 = 61362447501
BaseRepresentation
bin100011101001101011…
…110100110010100001
310122210211011122102202
4203221223310302201
51111344230134423
625330304022545
72523423222662
oct435153646241
9118724148382
1038280318113
1115264272644
127504001a55
1337c0a0460b
141bd2041369
15ee0a46728
hex8e9af4ca1

38280318113 has 4 divisors (see below), whose sum is σ = 38342766228. Its totient is φ = 38217870000.

The previous prime is 38280318071. The next prime is 38280318127. The reversal of 38280318113 is 31181308283.

It is a happy number.

38280318113 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 3597960289 + 34682357824 = 59983^2 + 186232^2 .

It is a cyclic number.

It is not a de Polignac number, because 38280318113 - 218 = 38280055969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38280318133) 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, 31223138 + ... + 31224363.

It is an arithmetic number, because the mean of its divisors is an integer number (9585691557).

Almost surely, 238280318113 is an apocalyptic number.

It is an amenable number.

38280318113 is a deficient number, since it is larger than the sum of its proper divisors (62448115).

38280318113 is an equidigital number, since it uses as much as digits as its factorization.

38280318113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62448114.

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 38280318113 in words is "thirty-eight billion, two hundred eighty million, three hundred eighteen thousand, one hundred thirteen".

Divisors: 1 613 62447501 38280318113