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2112100030 = 25211210003
BaseRepresentation
bin111110111100100…
…0001011010111110
312110012021210120001
41331321001122332
513311144200110
6545325344514
7103224361015
oct17571013276
95405253501
102112100030
11994253017
124ab40813a
13278766541
14160719a7c
15c565763a
hex7de416be

2112100030 has 8 divisors (see below), whose sum is σ = 3801780072. Its totient is φ = 844840008.

The previous prime is 2112100013. The next prime is 2112100049. The reversal of 2112100030 is 300012112.

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 211210003 = 2112100030 / (2 + 1 + 1 + 2 + 1 + 0 + 0 + 0 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105604992 + ... + 105605011.

It is an arithmetic number, because the mean of its divisors is an integer number (475222509).

Almost surely, 22112100030 is an apocalyptic number.

2112100030 is a deficient number, since it is larger than the sum of its proper divisors (1689680042).

2112100030 is a wasteful number, since it uses less digits than its factorization.

2112100030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211210010.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2112100030 is about 45957.5894711635. The cubic root of 2112100030 is about 1283.0339873388.

Adding to 2112100030 its reverse (300012112), we get a palindrome (2412112142).

The spelling of 2112100030 in words is "two billion, one hundred twelve million, one hundred thousand, thirty".

Divisors: 1 2 5 10 211210003 422420006 1056050015 2112100030