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2131301 = 2578293
BaseRepresentation
bin1000001000010101100101
311000021121002
420020111211
51021200201
6113403045
724054464
oct10102545
94007532
102131301
111226307
12869485
13598133
143d69db
152c176b
hex208565

2131301 has 4 divisors (see below), whose sum is σ = 2139852. Its totient is φ = 2122752.

The previous prime is 2131291. The next prime is 2131319. The reversal of 2131301 is 1031312.

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 1442401 + 688900 = 1201^2 + 830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2131301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131321) 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, 3890 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (534963).

22131301 is an apocalyptic number.

It is an amenable number.

2131301 is a deficient number, since it is larger than the sum of its proper divisors (8551).

2131301 is an equidigital number, since it uses as much as digits as its factorization.

2131301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8550.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2131301 is about 1459.8975991487. The cubic root of 2131301 is about 128.6910258706.

Adding to 2131301 its sum of digits (11), we get a palindrome (2131312).

Adding to 2131301 its reverse (1031312), we get a palindrome (3162613).

The spelling of 2131301 in words is "two million, one hundred thirty-one thousand, three hundred one".

Divisors: 1 257 8293 2131301