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2123032213 = 37161335573
BaseRepresentation
bin111111010001010…
…1110011010010101
312110221212012200201
41332202232122111
513321444012323
6550355540501
7103416322201
oct17642563225
95427765621
102123032213
1199a43a585
124b2bba731
1327aac34a3
14161d63b01
15c65b68ad
hex7e8ae695

2123032213 has 8 divisors (see below), whose sum is σ = 2181824568. Its totient is φ = 2064314304.

The previous prime is 2123032187. The next prime is 2123032217. The reversal of 2123032213 is 3122303212.

It can be written as a sum of positive squares in 4 ways, for example, as 484968484 + 1638063729 = 22022^2 + 40473^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2123032213 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 (2123032217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41895 + ... + 77467.

It is an arithmetic number, because the mean of its divisors is an integer number (272728071).

Almost surely, 22123032213 is an apocalyptic number.

It is an amenable number.

2123032213 is a deficient number, since it is larger than the sum of its proper divisors (58792355).

2123032213 is a wasteful number, since it uses less digits than its factorization.

2123032213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37223.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2123032213 is about 46076.3736962882. The cubic root of 2123032213 is about 1285.2438308513.

Adding to 2123032213 its reverse (3122303212), we get a palindrome (5245335425).

The spelling of 2123032213 in words is "two billion, one hundred twenty-three million, thirty-two thousand, two hundred thirteen".

Divisors: 1 37 1613 35573 59681 1316201 57379249 2123032213