Search a number
-
+
2100037 = 4015237
BaseRepresentation
bin1000000000101101000101
310221200201011
420000231011
51014200122
6113002221
723564362
oct10005505
93850634
102100037
111204875
12853371
13586b34
143c9469
152b7377
hex200b45

2100037 has 4 divisors (see below), whose sum is σ = 2105676. Its totient is φ = 2094400.

The previous prime is 2100031. The next prime is 2100041. The reversal of 2100037 is 7300012.

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 1976836 + 123201 = 1406^2 + 351^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100037 - 211 = 2097989 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 (2100031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2218 + ... + 3019.

It is an arithmetic number, because the mean of its divisors is an integer number (526419).

22100037 is an apocalyptic number.

It is an amenable number.

2100037 is a deficient number, since it is larger than the sum of its proper divisors (5639).

2100037 is an equidigital number, since it uses as much as digits as its factorization.

2100037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638.

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 2100037 is about 1449.1504407756. The cubic root of 2100037 is about 128.0586685805.

Adding to 2100037 its reverse (7300012), we get a palindrome (9400049).

The spelling of 2100037 in words is "two million, one hundred thousand, thirty-seven".

Divisors: 1 401 5237 2100037