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72038230 = 25114115973
BaseRepresentation
bin1000100101100…
…11011101010110
312000112220212121
410102303131112
5121420210410
611052010154
71533212665
oct422633526
9160486777
1072038230
1137733430
122016095a
1311c03494
1497d2ddc
1564ce9da
hex44b3756

72038230 has 32 divisors (see below), whose sum is σ = 144916128. Its totient is φ = 25555200.

The previous prime is 72038221. The next prime is 72038237. The reversal of 72038230 is 3283027.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 72038195 and 72038204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72038237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3477 + ... + 12496.

It is an arithmetic number, because the mean of its divisors is an integer number (4528629).

Almost surely, 272038230 is an apocalyptic number.

72038230 is an abundant number, since it is smaller than the sum of its proper divisors (72877898).

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

72038230 is a wasteful number, since it uses less digits than its factorization.

72038230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16032.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 72038230 is about 8487.5337996381. The cubic root of 72038230 is about 416.0903826975.

The spelling of 72038230 in words is "seventy-two million, thirty-eight thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 41 55 82 110 205 410 451 902 2255 4510 15973 31946 79865 159730 175703 351406 654893 878515 1309786 1757030 3274465 6548930 7203823 14407646 36019115 72038230