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10142401 = 73138937
BaseRepresentation
bin100110101100…
…001011000001
3201002021202111
4212230023001
510044024101
61001215321
7152131453
oct46541301
921067674
1010142401
1157a8155
123491541
132141629
1414c02d3
15d55251
hex9ac2c1

10142401 has 4 divisors (see below), whose sum is σ = 10281412. Its totient is φ = 10003392.

The previous prime is 10142399. The next prime is 10142441. The reversal of 10142401 is 10424101.

10142401 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 can be written as a sum of positive squares in 2 ways, for example, as 8179600 + 1962801 = 2860^2 + 1401^2 .

It is a cyclic number.

It is not a de Polignac number, because 10142401 - 21 = 10142399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10142441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69396 + ... + 69541.

It is an arithmetic number, because the mean of its divisors is an integer number (2570353).

Almost surely, 210142401 is an apocalyptic number.

It is an amenable number.

10142401 is a deficient number, since it is larger than the sum of its proper divisors (139011).

10142401 is an equidigital number, since it uses as much as digits as its factorization.

10142401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139010.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 10142401 is about 3184.7136448981. The cubic root of 10142401 is about 216.4612983676.

Adding to 10142401 its reverse (10424101), we get a palindrome (20566502).

The spelling of 10142401 in words is "ten million, one hundred forty-two thousand, four hundred one".

Divisors: 1 73 138937 10142401