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2124012223 = 19257434981
BaseRepresentation
bin111111010011001…
…1101101010111111
312111000201000000101
41332212131222333
513322221342343
6550432541531
7103430543314
oct17646355277
95430630011
102124012223
1199aa49903
124b33b18a7
1327b077588
1416213ad0b
15c670be4d
hex7e99dabf

2124012223 has 8 divisors (see below), whose sum is σ = 2244507120. Its totient is φ = 2004387840.

The previous prime is 2124012221. The next prime is 2124012227. The reversal of 2124012223 is 3222104212.

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 2124012223 - 21 = 2124012221 is a prime.

It is a super-2 number, since 2×21240122232 = 9022855846906803458, which contains 22 as substring.

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 2124012223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124012221) 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, 212608 + ... + 222373.

It is an arithmetic number, because the mean of its divisors is an integer number (280563390).

Almost surely, 22124012223 is an apocalyptic number.

2124012223 is a deficient number, since it is larger than the sum of its proper divisors (120494897).

2124012223 is a wasteful number, since it uses less digits than its factorization.

2124012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435257.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2124012223 is about 46087.0070952758. The cubic root of 2124012223 is about 1285.4415603130.

Adding to 2124012223 its reverse (3222104212), we get a palindrome (5346116435).

The spelling of 2124012223 in words is "two billion, one hundred twenty-four million, twelve thousand, two hundred twenty-three".

Divisors: 1 19 257 4883 434981 8264639 111790117 2124012223