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2152255505 = 51725320653
BaseRepresentation
bin1000000001001000…
…1101000000010001
312112222211220111212
42000102031000101
513401434134010
6553322145505
7104222604251
oct20022150021
95488756455
102152255505
11a0498a464
12500952295
13283b85a8a
14165bad961
15c8e3a505
hex8048d011

2152255505 has 8 divisors (see below), whose sum is σ = 2734630632. Its totient is φ = 1620521728.

The previous prime is 2152255481. The next prime is 2152255529. The reversal of 2152255505 is 5055522512.

It is an interprime number because it is at equal distance from previous prime (2152255481) and next prime (2152255529).

It can be written as a sum of positive squares in 4 ways, for example, as 211324369 + 1940931136 = 14537^2 + 44056^2 .

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 2152255505 - 228 = 1883820049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12660242 + ... + 12660411.

It is an arithmetic number, because the mean of its divisors is an integer number (341828829).

Almost surely, 22152255505 is an apocalyptic number.

It is an amenable number.

2152255505 is a deficient number, since it is larger than the sum of its proper divisors (582375127).

2152255505 is a wasteful number, since it uses less digits than its factorization.

2152255505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25320675.

The product of its (nonzero) digits is 25000, while the sum is 32.

The square root of 2152255505 is about 46392.4078379211. The cubic root of 2152255505 is about 1291.1140557423.

The spelling of 2152255505 in words is "two billion, one hundred fifty-two million, two hundred fifty-five thousand, five hundred five".

Divisors: 1 5 17 85 25320653 126603265 430451101 2152255505