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1222010023 = 131914273467
BaseRepresentation
bin100100011010110…
…0110010010100111
310011011102112121111
41020311212102213
510000313310043
6321131525451
742165625303
oct11065462247
93134375544
101222010023
1157787a243
122a12b9887
1316622c770
14b841cd03
157243709d
hex48d664a7

1222010023 has 16 divisors (see below), whose sum is σ = 1386645120. Its totient is φ = 1067583456.

The previous prime is 1222009979. The next prime is 1222010057. The reversal of 1222010023 is 3200102221.

It is a cyclic number.

It is not a de Polignac number, because 1222010023 - 213 = 1222001831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222009985 and 1222010012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222010093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350736 + ... + 354202.

It is an arithmetic number, because the mean of its divisors is an integer number (86665320).

Almost surely, 21222010023 is an apocalyptic number.

1222010023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222010023 is a deficient number, since it is larger than the sum of its proper divisors (164635097).

1222010023 is a wasteful number, since it uses less digits than its factorization.

1222010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1222010023 is about 34957.2599469695. The cubic root of 1222010023 is about 1069.1162303910.

Adding to 1222010023 its reverse (3200102221), we get a palindrome (4422112244).

The spelling of 1222010023 in words is "one billion, two hundred twenty-two million, ten thousand, twenty-three".

Divisors: 1 13 19 247 1427 3467 18551 27113 45071 65873 352469 856349 4947409 64316317 94000771 1222010023