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1222000023 = 3657761933
BaseRepresentation
bin100100011010110…
…0011110110010111
310011011102000220010
41020311203312113
510000313000043
6321131411303
742165554166
oct11065436627
93134360803
101222000023
11577872782
122a12b3b33
1316622804a
14b84193dd
1572434133
hex48d63d97

1222000023 has 8 divisors (see below), whose sum is σ = 1629607408. Its totient is φ = 814529664.

The previous prime is 1222000009. The next prime is 1222000037. The reversal of 1222000023 is 3200002221.

It is an interprime number because it is at equal distance from previous prime (1222000009) and next prime (1222000037).

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

It is not a de Polignac number, because 1222000023 - 220 = 1220951447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1221999972 and 1222000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222000063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11236 + ... + 50697.

It is an arithmetic number, because the mean of its divisors is an integer number (203700926).

Almost surely, 21222000023 is an apocalyptic number.

1222000023 is a deficient number, since it is larger than the sum of its proper divisors (407607385).

1222000023 is an equidigital number, since it uses as much as digits as its factorization.

1222000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68513.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1222000023 is about 34957.1169148716. The cubic root of 1222000023 is about 1069.1133141052.

Adding to 1222000023 its reverse (3200002221), we get a palindrome (4422002244).

The spelling of 1222000023 in words is "one billion, two hundred twenty-two million, twenty-three", and thus it is an aban number.

Divisors: 1 3 6577 19731 61933 185799 407333341 1222000023