Search a number
-
+
120612493 = 429728069
BaseRepresentation
bin1110011000001…
…10011010001101
322101221202020101
413030012122031
5221334044433
615545051101
72663121631
oct714063215
9271852211
10120612493
116209aa51
1234486a91
131bcac951
1412038dc1
15a8c707d
hex730668d

120612493 has 4 divisors (see below), whose sum is σ = 120644860. Its totient is φ = 120580128.

The previous prime is 120612491. The next prime is 120612497. The reversal of 120612493 is 394216021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 394216021 = 2317139827.

It can be written as a sum of positive squares in 2 ways, for example, as 37675044 + 82937449 = 6138^2 + 9107^2 .

It is a cyclic number.

It is not a de Polignac number, because 120612493 - 21 = 120612491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120612491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9738 + ... + 18331.

It is an arithmetic number, because the mean of its divisors is an integer number (30161215).

Almost surely, 2120612493 is an apocalyptic number.

It is an amenable number.

120612493 is a deficient number, since it is larger than the sum of its proper divisors (32367).

120612493 is an equidigital number, since it uses as much as digits as its factorization.

120612493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32366.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 120612493 is about 10982.3719204915. The cubic root of 120612493 is about 494.0801787062.

The spelling of 120612493 in words is "one hundred twenty million, six hundred twelve thousand, four hundred ninety-three".

Divisors: 1 4297 28069 120612493