Search a number
-
+
103820395 = 5731103929
BaseRepresentation
bin1100011000000…
…10110001101011
321020100121210211
412030002301223
5203034223040
614145121551
72400313240
oct614026153
9236317724
10103820395
1153670888
122a9292b7
13186806b3
14db075c7
1591ab8ea
hex6302c6b

103820395 has 32 divisors (see below), whose sum is σ = 148561920. Its totient is φ = 68152320.

The previous prime is 103820363. The next prime is 103820399. The reversal of 103820395 is 593028301.

It is a happy number.

It is not a de Polignac number, because 103820395 - 25 = 103820363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (103820399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111291 + ... + 112219.

It is an arithmetic number, because the mean of its divisors is an integer number (4642560).

Almost surely, 2103820395 is an apocalyptic number.

103820395 is a deficient number, since it is larger than the sum of its proper divisors (44741525).

103820395 is a wasteful number, since it uses less digits than its factorization.

103820395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 103820395 is about 10189.2293624199. The cubic root of 103820395 is about 469.9960690783.

Adding to 103820395 its reverse (593028301), we get a palindrome (696848696).

The spelling of 103820395 in words is "one hundred three million, eight hundred twenty thousand, three hundred ninety-five".

Divisors: 1 5 7 31 35 103 155 217 515 721 929 1085 3193 3605 4645 6503 15965 22351 28799 32515 95687 111755 143995 201593 478435 669809 1007965 2966297 3349045 14831485 20764079 103820395