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2212040023 = 13915913957
BaseRepresentation
bin1000001111011001…
…0000110101010111
312201011100021110021
42003312100311113
514012240240043
61003255410011
7105550013164
oct20366206527
95634307407
102212040023
11a35703456
12518983907
1329338892b
1416dad306b
15ce2e93ed
hex83d90d57

2212040023 has 4 divisors (see below), whose sum is σ = 2227954120. Its totient is φ = 2196125928.

The previous prime is 2212039981. The next prime is 2212040027. The reversal of 2212040023 is 3200402122.

2212040023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3200402122 = 21600201061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2212040023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212039979 and 2212040006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212040027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7956840 + ... + 7957117.

It is an arithmetic number, because the mean of its divisors is an integer number (556988530).

Almost surely, 22212040023 is an apocalyptic number.

2212040023 is a deficient number, since it is larger than the sum of its proper divisors (15914097).

2212040023 is a wasteful number, since it uses less digits than its factorization.

2212040023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15914096.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2212040023 is about 47032.3295510652. The cubic root of 2212040023 is about 1302.9597303861.

Adding to 2212040023 its reverse (3200402122), we get a palindrome (5412442145).

The spelling of 2212040023 in words is "two billion, two hundred twelve million, forty thousand, twenty-three".

Divisors: 1 139 15913957 2212040023