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2215032551 = 53263158909
BaseRepresentation
bin1000010000000110…
…1011011011100111
312201100222022102122
42010001223123213
514014022020201
61003443500155
7105614315564
oct20401533347
95640868378
102215032551
11a37367816
1251998765b
13293b95a64
1417027186b
15ce6dae1b
hex8406b6e7

2215032551 has 8 divisors (see below), whose sum is σ = 2265420960. Its totient is φ = 2164962592.

The previous prime is 2215032541. The next prime is 2215032571. The reversal of 2215032551 is 1552305122.

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

It is a cyclic number.

It is not a de Polignac number, because 2215032551 - 26 = 2215032487 is a prime.

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 2215032551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215032541) 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, 65516 + ... + 93393.

It is an arithmetic number, because the mean of its divisors is an integer number (283177620).

Almost surely, 22215032551 is an apocalyptic number.

2215032551 is a deficient number, since it is larger than the sum of its proper divisors (50388409).

2215032551 is a wasteful number, since it uses less digits than its factorization.

2215032551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159225.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 2215032551 is about 47064.1323196338. The cubic root of 2215032551 is about 1303.5470293582.

Adding to 2215032551 its reverse (1552305122), we get a palindrome (3767337673).

The spelling of 2215032551 in words is "two billion, two hundred fifteen million, thirty-two thousand, five hundred fifty-one".

Divisors: 1 53 263 13939 158909 8422177 41793067 2215032551