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72350120 = 2352238111
BaseRepresentation
bin1000100111111…
…11100110101000
312001010202201002
410103333212220
5122010200440
611102414132
71535652203
oct423774650
9161122632
1072350120
1137926797
1220291348
1311cb242b
14987493a
156542115
hex44ff9a8

72350120 has 32 divisors (see below), whose sum is σ = 163537920. Its totient is φ = 28806720.

The previous prime is 72350101. The next prime is 72350129. The reversal of 72350120 is 2105327.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 72350092 and 72350101.

It is not an unprimeable number, because it can be changed into a prime (72350129) 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, 4865 + ... + 12975.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560).

Almost surely, 272350120 is an apocalyptic number.

It is an amenable number.

72350120 is an abundant number, since it is smaller than the sum of its proper divisors (91187800).

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

72350120 is a wasteful number, since it uses less digits than its factorization.

72350120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8345 (or 8341 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 72350120 is about 8505.8873728730. The cubic root of 72350120 is about 416.6900068703.

Adding to 72350120 its reverse (2105327), we get a palindrome (74455447).

The spelling of 72350120 in words is "seventy-two million, three hundred fifty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 223 446 892 1115 1784 2230 4460 8111 8920 16222 32444 40555 64888 81110 162220 324440 1808753 3617506 7235012 9043765 14470024 18087530 36175060 72350120