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72038222 = 2149241739
BaseRepresentation
bin1000100101100…
…11011101001110
312000112220212022
410102303131032
5121420210342
611052010142
71533212654
oct422633516
9160486768
1072038222
1137733423
1220160952
1311c03489
1497d2dd4
1564ce9d2
hex44b374e

72038222 has 8 divisors (see below), whose sum is σ = 108783000. Its totient is φ = 35777224.

The previous prime is 72038221. The next prime is 72038237. The reversal of 72038222 is 22283027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 72038191 and 72038200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72038221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120572 + ... + 121167.

It is an arithmetic number, because the mean of its divisors is an integer number (13597875).

Almost surely, 272038222 is an apocalyptic number.

72038222 is a deficient number, since it is larger than the sum of its proper divisors (36744778).

72038222 is a wasteful number, since it uses less digits than its factorization.

72038222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241890.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 72038222 is about 8487.5333283587. The cubic root of 72038222 is about 416.0903672949.

The spelling of 72038222 in words is "seventy-two million, thirty-eight thousand, two hundred twenty-two".

Divisors: 1 2 149 298 241739 483478 36019111 72038222