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2130111232 = 288320747
BaseRepresentation
bin111111011110110…
…1110101100000000
312111110011212021121
41332331232230000
513330302024412
6551211402024
7103533434554
oct17675565400
95443155247
102130111232
119a3435107
124b5453314
1327c401662
14162c87864
15c7014107
hex7ef6eb00

2130111232 has 18 divisors (see below), whose sum is σ = 4251902228. Its totient is φ = 1065055488.

The previous prime is 2130111229. The next prime is 2130111233. The reversal of 2130111232 is 2321110312.

It is a super-3 number, since 3×21301112323 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2130111233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4160118 + ... + 4160629.

Almost surely, 22130111232 is an apocalyptic number.

It is an amenable number.

2130111232 is a deficient number, since it is larger than the sum of its proper divisors (2121790996).

2130111232 is an frugal number, since it uses more digits than its factorization.

2130111232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8320763 (or 8320749 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2130111232 is about 46153.1280846705. The cubic root of 2130111232 is about 1286.6707477775.

Adding to 2130111232 its reverse (2321110312), we get a palindrome (4451221544).

The spelling of 2130111232 in words is "two billion, one hundred thirty million, one hundred eleven thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 128 256 8320747 16641494 33282988 66565976 133131952 266263904 532527808 1065055616 2130111232