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72952238 = 23110611109
BaseRepresentation
bin1000101100100…
…10100110101110
312002021100122202
410112102212232
5122133432423
611123341502
71544040512
oct426224656
9162240582
1072952238
11381a8107
1220521892
1312163508
149990142
156610728
hex45929ae

72952238 has 16 divisors (see below), whose sum is σ = 113166720. Its totient is φ = 35234400.

The previous prime is 72952237. The next prime is 72952241. The reversal of 72952238 is 83225927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72952237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65228 + ... + 66336.

It is an arithmetic number, because the mean of its divisors is an integer number (7072920).

Almost surely, 272952238 is an apocalyptic number.

72952238 is a deficient number, since it is larger than the sum of its proper divisors (40214482).

72952238 is a wasteful number, since it uses less digits than its factorization.

72952238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203.

The product of its digits is 60480, while the sum is 38.

The square root of 72952238 is about 8541.2082283480. The cubic root of 72952238 is about 417.8427519904.

The spelling of 72952238 in words is "seventy-two million, nine hundred fifty-two thousand, two hundred thirty-eight".

Divisors: 1 2 31 62 1061 1109 2122 2218 32891 34379 65782 68758 1176649 2353298 36476119 72952238