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1232200120 = 235171812059
BaseRepresentation
bin100100101110001…
…1110000110111000
310011212121020210111
41021130132012320
510010420400440
6322134154104
742351346114
oct11134360670
93155536714
101232200120
115825aa208
122a47b2934
131683899c8
14b9912744
157329b4ea
hex4971e1b8

1232200120 has 32 divisors (see below), whose sum is σ = 2935537200. Its totient is φ = 463886848.

The previous prime is 1232200117. The next prime is 1232200139. The reversal of 1232200120 is 210022321.

It is a self number, because there is not a number n which added to its sum of digits gives 1232200120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905350 + ... + 906709.

Almost surely, 21232200120 is an apocalyptic number.

1232200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232200120 is an abundant number, since it is smaller than the sum of its proper divisors (1703337080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1232200120 is a wasteful number, since it uses less digits than its factorization.

1232200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812087 (or 1812083 counting only the distinct ones).

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

The square root of 1232200120 is about 35102.7081576337. The cubic root of 1232200120 is about 1072.0797236877.

Adding to 1232200120 its reverse (210022321), we get a palindrome (1442222441).

The spelling of 1232200120 in words is "one billion, two hundred thirty-two million, two hundred thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 1812059 3624118 7248236 9060295 14496472 18120590 30805003 36241180 61610006 72482360 123220012 154025015 246440024 308050030 616100060 1232200120