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120381193 = 1012394987
BaseRepresentation
bin1110010110011…
…01111100001001
322101111222221201
413023031330021
5221304144233
615540104201
72661136402
oct713157411
9271458851
10120381193
1161a52199
1234395061
131bc2b59a
1411db89a9
15a87d77d
hex72cdf09

120381193 has 8 divisors (see below), whose sum is σ = 122106240. Its totient is φ = 118666800.

The previous prime is 120381167. The next prime is 120381211. The reversal of 120381193 is 391183021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120381193 - 217 = 120250121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120381143) 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, 21646 + ... + 26632.

It is an arithmetic number, because the mean of its divisors is an integer number (15263280).

Almost surely, 2120381193 is an apocalyptic number.

It is an amenable number.

120381193 is a deficient number, since it is larger than the sum of its proper divisors (1725047).

120381193 is a wasteful number, since it uses less digits than its factorization.

120381193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5327.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 120381193 is about 10971.8363549590. The cubic root of 120381193 is about 493.7641421362.

It can be divided in two parts, 12038 and 1193, that added together give a palindrome (13231).

The spelling of 120381193 in words is "one hundred twenty million, three hundred eighty-one thousand, one hundred ninety-three".

Divisors: 1 101 239 4987 24139 503687 1191893 120381193