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2220413 = 13170801
BaseRepresentation
bin1000011110000101111101
311011210211112
420132011331
51032023123
6115331405
724605336
oct10360575
94153745
102220413
111287258
128b0b65
135c9870
1441b28d
152dcd78
hex21e17d

2220413 has 4 divisors (see below), whose sum is σ = 2391228. Its totient is φ = 2049600.

The previous prime is 2220409. The next prime is 2220419. The reversal of 2220413 is 3140222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1006009 + 1214404 = 1003^2 + 1102^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220413 - 22 = 2220409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220419) 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, 85388 + ... + 85413.

It is an arithmetic number, because the mean of its divisors is an integer number (597807).

22220413 is an apocalyptic number.

It is an amenable number.

2220413 is a deficient number, since it is larger than the sum of its proper divisors (170815).

2220413 is a wasteful number, since it uses less digits than its factorization.

2220413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170814.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2220413 is about 1490.1050298553. The cubic root of 2220413 is about 130.4601640961.

Adding to 2220413 its reverse (3140222), we get a palindrome (5360635).

The spelling of 2220413 in words is "two million, two hundred twenty thousand, four hundred thirteen".

Divisors: 1 13 170801 2220413