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2215131035 = 513231481693
BaseRepresentation
bin1000010000001000…
…0011011110011011
312201101011022112012
42010002003132123
514014033143120
61003445540135
7105615205655
oct20402033633
95641138465
102215131035
11a37424807
12519a1464b
13293bcb830
141702996d5
15ce70a1c5
hex8408379b

2215131035 has 16 divisors (see below), whose sum is σ = 2987095104. Its totient is φ = 1564666752.

The previous prime is 2215131031. The next prime is 2215131049. The reversal of 2215131035 is 5301315122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2215131035 - 22 = 2215131031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 2215131035.

It is not an unprimeable number, because it can be changed into a prime (2215131031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739352 + ... + 742341.

It is an arithmetic number, because the mean of its divisors is an integer number (186693444).

Almost surely, 22215131035 is an apocalyptic number.

2215131035 is a deficient number, since it is larger than the sum of its proper divisors (771964069).

2215131035 is a wasteful number, since it uses less digits than its factorization.

2215131035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481734.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 2215131035 is about 47065.1785824722. The cubic root of 2215131035 is about 1303.5663483554.

Adding to 2215131035 its reverse (5301315122), we get a palindrome (7516446157).

The spelling of 2215131035 in words is "two billion, two hundred fifteen million, one hundred thirty-one thousand, thirty-five".

Divisors: 1 5 13 23 65 115 299 1495 1481693 7408465 19262009 34078939 96310045 170394695 443026207 2215131035