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10013381 = 729107461
BaseRepresentation
bin100110001100…
…101011000101
3200211201202222
4212030223011
510030412011
6554342125
7151053350
oct46145305
920751688
1010013381
11571a224
12342a945
1320c79a1
141489297
15d2bddb
hex98cac5

10013381 has 16 divisors (see below), whose sum is σ = 11975040. Its totient is φ = 8191680.

The previous prime is 10013359. The next prime is 10013387. The reversal of 10013381 is 18331001.

It is not a de Polignac number, because 10013381 - 26 = 10013317 is a prime.

It is a super-2 number, since 2×100133812 = 200535598102322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10013387) 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 15 ways as a sum of consecutive naturals, for example, 21491 + ... + 21951.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 210013381 is an apocalyptic number.

It is an amenable number.

10013381 is a deficient number, since it is larger than the sum of its proper divisors (1961659).

10013381 is a wasteful number, since it uses less digits than its factorization.

10013381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 10013381 is about 3164.3926747482. The cubic root of 10013381 is about 215.5395211421.

Adding to 10013381 its reverse (18331001), we get a palindrome (28344382).

The spelling of 10013381 in words is "ten million, thirteen thousand, three hundred eighty-one".

Divisors: 1 7 29 107 203 461 749 3103 3227 13369 21721 49327 93583 345289 1430483 10013381