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10681145 = 53496121
BaseRepresentation
bin101000101111…
…101100111001
3202002122202222
4220233230321
510213244040
61020533425
7156534236
oct50575471
922078688
1010681145
1160359a2
1236b1275
13229c907
1415c078d
15e0ebb5
hexa2fb39

10681145 has 8 divisors (see below), whose sum is σ = 12856200. Its totient is φ = 8519040.

The previous prime is 10681133. The next prime is 10681147. The reversal of 10681145 is 54118601.

It can be written as a sum of positive squares in 4 ways, for example, as 524176 + 10156969 = 724^2 + 3187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10681145 - 28 = 10680889 is a prime.

It is a super-2 number, since 2×106811452 = 228173717022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10681147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1316 + ... + 4805.

It is an arithmetic number, because the mean of its divisors is an integer number (1607025).

Almost surely, 210681145 is an apocalyptic number.

It is an amenable number.

10681145 is a deficient number, since it is larger than the sum of its proper divisors (2175055).

10681145 is an equidigital number, since it uses as much as digits as its factorization.

10681145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6475.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 10681145 is about 3268.2021051336. The cubic root of 10681145 is about 220.2280349049.

Adding to 10681145 its reverse (54118601), we get a palindrome (64799746).

The spelling of 10681145 in words is "ten million, six hundred eighty-one thousand, one hundred forty-five".

Divisors: 1 5 349 1745 6121 30605 2136229 10681145