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2130221233 = 71916016701
BaseRepresentation
bin111111011111000…
…1001100010110001
312111110101110011201
41332332021202301
513330314034413
6551214011201
7103534403350
oct17676114261
95443343151
102130221233
119a34aa818
124b54a6b01
1327c43c74a
14162cb5997
15c70369dd
hex7ef898b1

2130221233 has 8 divisors (see below), whose sum is σ = 2562672320. Its totient is φ = 1729803600.

The previous prime is 2130221221. The next prime is 2130221257. The reversal of 2130221233 is 3321220312.

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

It is not a de Polignac number, because 2130221233 - 25 = 2130221201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 2130221233.

It is not an unprimeable number, because it can be changed into a prime (2130221033) 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, 8008218 + ... + 8008483.

It is an arithmetic number, because the mean of its divisors is an integer number (320334040).

Almost surely, 22130221233 is an apocalyptic number.

It is an amenable number.

2130221233 is a deficient number, since it is larger than the sum of its proper divisors (432451087).

2130221233 is a wasteful number, since it uses less digits than its factorization.

2130221233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16016727.

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

The square root of 2130221233 is about 46154.3197653264. The cubic root of 2130221233 is about 1286.6928957026.

Adding to 2130221233 its reverse (3321220312), we get a palindrome (5451441545).

The spelling of 2130221233 in words is "two billion, one hundred thirty million, two hundred twenty-one thousand, two hundred thirty-three".

Divisors: 1 7 19 133 16016701 112116907 304317319 2130221233