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10072387 = 13774799
BaseRepresentation
bin100110011011…
…000101000011
3200221201201101
4212123011003
510034304022
6555515231
7151420363
oct46330503
920851641
1010072387
11575a596
123458b17
1321187c0
1414a29a3
15d3e627
hex99b143

10072387 has 4 divisors (see below), whose sum is σ = 10847200. Its totient is φ = 9297576.

The previous prime is 10072373. The next prime is 10072393. The reversal of 10072387 is 78327001.

It is a happy number.

10072387 is digitally balanced in base 3, 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 is a cyclic number.

It is not a de Polignac number, because 10072387 - 223 = 1683779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10072327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387387 + ... + 387412.

It is an arithmetic number, because the mean of its divisors is an integer number (2711800).

Almost surely, 210072387 is an apocalyptic number.

10072387 is a deficient number, since it is larger than the sum of its proper divisors (774813).

10072387 is an equidigital number, since it uses as much as digits as its factorization.

10072387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774812.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 10072387 is about 3173.7024120103. The cubic root of 10072387 is about 215.9620632391.

Adding to 10072387 its reverse (78327001), we get a palindrome (88399388).

The spelling of 10072387 in words is "ten million, seventy-two thousand, three hundred eighty-seven".

Divisors: 1 13 774799 10072387