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1900413 = 321712421
BaseRepresentation
bin111001111111101111101
310120112212200
413033331331
5441303123
6104422113
722103364
oct7177575
93515780
101900413
111088899
12777939
13517008
143767db
15278143
hex1cff7d

1900413 has 12 divisors (see below), whose sum is σ = 2906748. Its totient is φ = 1192320.

The previous prime is 1900397. The next prime is 1900429. The reversal of 1900413 is 3140091.

It is an interprime number because it is at equal distance from previous prime (1900397) and next prime (1900429).

It can be written as a sum of positive squares in 2 ways, for example, as 1695204 + 205209 = 1302^2 + 453^2 .

It is not a de Polignac number, because 1900413 - 24 = 1900397 is a prime.

It is a super-2 number, since 2×19004132 = 7223139141138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6058 + ... + 6363.

It is an arithmetic number, because the mean of its divisors is an integer number (242229).

21900413 is an apocalyptic number.

It is an amenable number.

1900413 is a deficient number, since it is larger than the sum of its proper divisors (1006335).

1900413 is a wasteful number, since it uses less digits than its factorization.

1900413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12444 (or 12441 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1900413 is about 1378.5546779145. The cubic root of 1900413 is about 123.8652064575.

The spelling of 1900413 in words is "one million, nine hundred thousand, four hundred thirteen".

Divisors: 1 3 9 17 51 153 12421 37263 111789 211157 633471 1900413