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3111442 = 21791513
BaseRepresentation
bin1011110111101000010010
312212002002121
423313220102
51244031232
6150404454
735306155
oct13675022
95762077
103111442
111835744
12106072a
1384c2b9
145adc9c
15416d97
hex2f7a12

3111442 has 8 divisors (see below), whose sum is σ = 4941756. Its totient is φ = 1464192.

The previous prime is 3111431. The next prime is 3111457. The reversal of 3111442 is 2441113.

It can be written as a sum of positive squares in 2 ways, for example, as 3059001 + 52441 = 1749^2 + 229^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45723 + ... + 45790.

Almost surely, 23111442 is an apocalyptic number.

3111442 is a deficient number, since it is larger than the sum of its proper divisors (1830314).

3111442 is a wasteful number, since it uses less digits than its factorization.

3111442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91532.

The product of its digits is 96, while the sum is 16.

The square root of 3111442 is about 1763.9280030659. The cubic root of 3111442 is about 145.9891466255.

Adding to 3111442 its reverse (2441113), we get a palindrome (5552555).

It can be divided in two parts, 3111 and 442, that added together give a palindrome (3553).

The spelling of 3111442 in words is "three million, one hundred eleven thousand, four hundred forty-two".

Divisors: 1 2 17 34 91513 183026 1555721 3111442