Search a number
-
+
10011031 = 64715473
BaseRepresentation
bin100110001100…
…000110010111
3200211121112221
4212030012113
510030323111
6554323211
7151043452
oct46140627
920747487
1010011031
115718488
123429507
1320c68b4
141488499
15d2b371
hex98c197

10011031 has 4 divisors (see below), whose sum is σ = 10027152. Its totient is φ = 9994912.

The previous prime is 10011017. The next prime is 10011037. The reversal of 10011031 is 13011001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13011001 = 17765353.

It is a cyclic number.

It is not a de Polignac number, because 10011031 - 211 = 10008983 is a prime.

It is a super-2 number, since 2×100110312 = 200441483365922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011037) 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, 7090 + ... + 8383.

It is an arithmetic number, because the mean of its divisors is an integer number (2506788).

Almost surely, 210011031 is an apocalyptic number.

10011031 is a deficient number, since it is larger than the sum of its proper divisors (16121).

10011031 is an equidigital number, since it uses as much as digits as its factorization.

10011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16120.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 10011031 is about 3164.0213336828. The cubic root of 10011031 is about 215.5226584559.

Adding to 10011031 its reverse (13011001), we get a palindrome (23022032).

The spelling of 10011031 in words is "ten million, eleven thousand, thirty-one".

Divisors: 1 647 15473 10011031