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3445131 = 31148377
BaseRepresentation
bin1101001001000110001011
320111000211110
431021012023
51340221011
6201501403
741166054
oct15110613
96430743
103445131
111a43418
1211a1863
13938151
1465972b
15480ba6
hex34918b

3445131 has 4 divisors (see below), whose sum is σ = 4593512. Its totient is φ = 2296752.

The previous prime is 3445121. The next prime is 3445153. The reversal of 3445131 is 1315443.

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

It is not a de Polignac number, because 3445131 - 27 = 3445003 is a prime.

It is a super-2 number, since 2×34451312 = 23737855214322, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3445098 and 3445107.

It is not an unprimeable number, because it can be changed into a prime (3445121) 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, 574186 + ... + 574191.

It is an arithmetic number, because the mean of its divisors is an integer number (1148378).

Almost surely, 23445131 is an apocalyptic number.

3445131 is a deficient number, since it is larger than the sum of its proper divisors (1148381).

3445131 is a wasteful number, since it uses less digits than its factorization.

3445131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148380.

The product of its digits is 720, while the sum is 21.

The square root of 3445131 is about 1856.1064085876. The cubic root of 3445131 is about 151.0318632231.

The spelling of 3445131 in words is "three million, four hundred forty-five thousand, one hundred thirty-one".

Divisors: 1 3 1148377 3445131