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2113442 = 21056721
BaseRepresentation
bin1000000011111110100010
310222101002122
420003332202
51020112232
6113144242
723651432
oct10037642
93871078
102113442
111213951
1285b082
1358cc76
143d02c2
152bb312
hex203fa2

2113442 has 4 divisors (see below), whose sum is σ = 3170166. Its totient is φ = 1056720.

The previous prime is 2113421. The next prime is 2113451. The reversal of 2113442 is 2443112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1852321 + 261121 = 1361^2 + 511^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2113442.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528359 + ... + 528362.

22113442 is an apocalyptic number.

2113442 is a deficient number, since it is larger than the sum of its proper divisors (1056724).

2113442 is a wasteful number, since it uses less digits than its factorization.

2113442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056723.

The product of its digits is 192, while the sum is 17.

The square root of 2113442 is about 1453.7682071087. The cubic root of 2113442 is about 128.3305664590.

Adding to 2113442 its reverse (2443112), we get a palindrome (4556554).

It can be divided in two parts, 21 and 13442, that multiplied together give a palindrome (282282).

The spelling of 2113442 in words is "two million, one hundred thirteen thousand, four hundred forty-two".

Divisors: 1 2 1056721 2113442