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10182481 = 31912
BaseRepresentation
bin100110110101…
…111101010001
3201011022201221
4212311331101
510101314411
61002125041
7152356351
oct46657521
921138657
1010182481
115825281
1234b0781
13215694a
1414d0b61
15d62071
hex9b5f51

10182481 has 3 divisors (see below), whose sum is σ = 10185673. Its totient is φ = 10179290.

The previous prime is 10182463. The next prime is 10182493. The reversal of 10182481 is 18428101.

The square root of 10182481 is 3191.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2k-10182481 is a prime.

It is a super-2 number, since 2×101824812 = 207365838630722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10182421) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1596 + ... + 4786.

Almost surely, 210182481 is an apocalyptic number.

10182481 is the 3191-st square number.

10182481 is the 1596-th centered octagonal number.

It is an amenable number.

10182481 is a deficient number, since it is larger than the sum of its proper divisors (3192).

10182481 is an frugal number, since it uses more digits than its factorization.

10182481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6382 (or 3191 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The cubic root of 10182481 is about 216.7460555887.

Multiplying 10182481 by its sum of digits (25), we get a square (254562025 = 159552).

The spelling of 10182481 in words is "ten million, one hundred eighty-two thousand, four hundred eighty-one".

Divisors: 1 3191 10182481