Search a number
-
+
120386190 = 2354012873
BaseRepresentation
bin1110010110011…
…11001010001110
322101112020210210
413023033022032
5221304324230
615540143250
72661160101
oct713171216
9271466723
10120386190
1161a55a21
1234397b26
131bc30942
1411dba738
15a87eeb0
hex72cf28e

120386190 has 16 divisors (see below), whose sum is σ = 288926928. Its totient is φ = 32102976.

The previous prime is 120386183. The next prime is 120386191. The reversal of 120386190 is 91683021.

It is a super-2 number, since 2×1203861902 = 28985669485432200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4012873 = 120386190 / (1 + 2 + 0 + 3 + 8 + 6 + 1 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120386191) 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, 2006407 + ... + 2006466.

It is an arithmetic number, because the mean of its divisors is an integer number (18057933).

Almost surely, 2120386190 is an apocalyptic number.

120386190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120386190 is an abundant number, since it is smaller than the sum of its proper divisors (168540738).

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

120386190 is a wasteful number, since it uses less digits than its factorization.

120386190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012883.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 120386190 is about 10972.0640719967. The cubic root of 120386190 is about 493.7709740596.

The spelling of 120386190 in words is "one hundred twenty million, three hundred eighty-six thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 4012873 8025746 12038619 20064365 24077238 40128730 60193095 120386190