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120200930 = 2541293173
BaseRepresentation
bin1110010101000…
…01111011100010
322101011211200022
413022201323202
5221232412210
615532153442
72656456013
oct712417342
9271154608
10120200930
1161939813
1234308882
131bb97515
1411d6d00a
15a845155
hex72a1ee2

120200930 has 16 divisors (see below), whose sum is σ = 221639544. Its totient is φ = 46907520.

The previous prime is 120200917. The next prime is 120200933. The reversal of 120200930 is 39002021.

It can be written as a sum of positive squares in 4 ways, for example, as 32160241 + 88040689 = 5671^2 + 9383^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120200899 and 120200908.

It is not an unprimeable number, because it can be changed into a prime (120200933) 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, 146177 + ... + 146996.

Almost surely, 2120200930 is an apocalyptic number.

120200930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120200930 is a deficient number, since it is larger than the sum of its proper divisors (101438614).

120200930 is a wasteful number, since it uses less digits than its factorization.

120200930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293221.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 120200930 is about 10963.6184720192. The cubic root of 120200930 is about 493.5175591279.

Adding to 120200930 its reverse (39002021), we get a palindrome (159202951).

The spelling of 120200930 in words is "one hundred twenty million, two hundred thousand, nine hundred thirty".

Divisors: 1 2 5 10 41 82 205 410 293173 586346 1465865 2931730 12020093 24040186 60100465 120200930