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120340433 = 1719219609
BaseRepresentation
bin1110010110000…
…11111111010001
322101102221001002
413023003333101
5221301343213
615535151345
72660606513
oct713037721
9271387032
10120340433
1161a24604
1234375555
131bc15b75
1411da7bb3
15a871658
hex72c3fd1

120340433 has 12 divisors (see below), whose sum is σ = 134485380. Its totient is φ = 107294976.

The previous prime is 120340421. The next prime is 120340457. The reversal of 120340433 is 334043021.

It can be written as a sum of positive squares in 2 ways, for example, as 111999889 + 8340544 = 10583^2 + 2888^2 .

It is not a de Polignac number, because 120340433 - 214 = 120324049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120340483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3668 + ... + 15941.

It is an arithmetic number, because the mean of its divisors is an integer number (11207115).

Almost surely, 2120340433 is an apocalyptic number.

It is an amenable number.

120340433 is a deficient number, since it is larger than the sum of its proper divisors (14144947).

120340433 is a wasteful number, since it uses less digits than its factorization.

120340433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19664 (or 19645 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 120340433 is about 10969.9787146557. The cubic root of 120340433 is about 493.7084077981.

Adding to 120340433 its reverse (334043021), we get a palindrome (454383454).

The spelling of 120340433 in words is "one hundred twenty million, three hundred forty thousand, four hundred thirty-three".

Divisors: 1 17 19 323 361 6137 19609 333353 372571 6333707 7078849 120340433