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120190243 = 221354311
BaseRepresentation
bin1110010100111…
…11010100100011
322101011022000111
413022133110203
5221232041433
615532032151
72656412605
oct712372443
9271138014
10120190243
1161931788
1234302657
131bb926b4
1411d69175
15a841dcd
hex729f523

120190243 has 4 divisors (see below), whose sum is σ = 120246768. Its totient is φ = 120133720.

The previous prime is 120190241. The next prime is 120190253. The reversal of 120190243 is 342091021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342091021 = 3071114303.

It is a cyclic number.

It is not a de Polignac number, because 120190243 - 21 = 120190241 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120190241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24943 + ... + 29368.

It is an arithmetic number, because the mean of its divisors is an integer number (30061692).

Almost surely, 2120190243 is an apocalyptic number.

120190243 is a deficient number, since it is larger than the sum of its proper divisors (56525).

120190243 is an equidigital number, since it uses as much as digits as its factorization.

120190243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56524.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 120190243 is about 10963.1310764763. The cubic root of 120190243 is about 493.5029325675.

The spelling of 120190243 in words is "one hundred twenty million, one hundred ninety thousand, two hundred forty-three".

Divisors: 1 2213 54311 120190243