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2102440413 = 3700813471
BaseRepresentation
bin111110101010000…
…1011000111011101
312102112010001001110
41331110023013131
513301211043123
6544342332233
7103046306613
oct17524130735
95375101043
102102440413
11989855667
124a812a079
132767638a8
1415d3236b3
15c489a493
hex7d50b1dd

2102440413 has 4 divisors (see below), whose sum is σ = 2803253888. Its totient is φ = 1401626940.

The previous prime is 2102440399. The next prime is 2102440441. The reversal of 2102440413 is 3140442012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2102440413 - 26 = 2102440349 is a prime.

It is a super-2 number, since 2×21024404132 = 8840511380431221138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2102440413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102440453) 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, 350406733 + ... + 350406738.

It is an arithmetic number, because the mean of its divisors is an integer number (700813472).

Almost surely, 22102440413 is an apocalyptic number.

It is an amenable number.

2102440413 is a deficient number, since it is larger than the sum of its proper divisors (700813475).

2102440413 is an equidigital number, since it uses as much as digits as its factorization.

2102440413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700813474.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2102440413 is about 45852.3763070138. The cubic root of 2102440413 is about 1281.0750272487.

Adding to 2102440413 its reverse (3140442012), we get a palindrome (5242882425).

The spelling of 2102440413 in words is "two billion, one hundred two million, four hundred forty thousand, four hundred thirteen".

Divisors: 1 3 700813471 2102440413