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72335270 = 257321089
BaseRepresentation
bin1000100111110…
…11111110100110
312001010000100002
410103323332212
5122004212040
611102221302
71535561000
oct423737646
9161100302
1072335270
1137916617
1220284832
1311ca8747
14986d370
15653ca15
hex44fbfa6

72335270 has 32 divisors (see below), whose sum is σ = 151848000. Its totient is φ = 24799488.

The previous prime is 72335267. The next prime is 72335281. The reversal of 72335270 is 7253327.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7115 + ... + 13974.

It is an arithmetic number, because the mean of its divisors is an integer number (4745250).

Almost surely, 272335270 is an apocalyptic number.

72335270 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72335270 is an abundant number, since it is smaller than the sum of its proper divisors (79512730).

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

72335270 is a wasteful number, since it uses less digits than its factorization.

72335270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21117 (or 21103 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 72335270 is about 8505.0144032800. The cubic root of 72335270 is about 416.6614961136.

Adding to 72335270 its reverse (7253327), we get a palindrome (79588597).

The spelling of 72335270 in words is "seventy-two million, three hundred thirty-five thousand, two hundred seventy".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 686 1715 3430 21089 42178 105445 147623 210890 295246 738115 1033361 1476230 2066722 5166805 7233527 10333610 14467054 36167635 72335270