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120040254 = 2326668903
BaseRepresentation
bin1110010011110…
…10101100111110
322100212200021100
413021322230332
5221212242004
615524513530
72655216405
oct711725476
9270780240
10120040254
116183a024
123424b8a6
131bb3c349
1411d2a63c
15a812739
hex727ab3e

120040254 has 12 divisors (see below), whose sum is σ = 260087256. Its totient is φ = 40013412.

The previous prime is 120040241. The next prime is 120040259. The reversal of 120040254 is 452040021.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6668903 = 120040254 / (1 + 2 + 0 + 0 + 4 + 0 + 2 + 5 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120040259) 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 5 ways as a sum of consecutive naturals, for example, 3334434 + ... + 3334469.

It is an arithmetic number, because the mean of its divisors is an integer number (21673938).

Almost surely, 2120040254 is an apocalyptic number.

120040254 is an abundant number, since it is smaller than the sum of its proper divisors (140047002).

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

120040254 is a wasteful number, since it uses less digits than its factorization.

120040254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6668911 (or 6668908 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 120040254 is about 10956.2883313648. The cubic root of 120040254 is about 493.2975614229.

Adding to 120040254 its reverse (452040021), we get a palindrome (572080275).

The spelling of 120040254 in words is "one hundred twenty million, forty thousand, two hundred fifty-four".

Divisors: 1 2 3 6 9 18 6668903 13337806 20006709 40013418 60020127 120040254