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72012050 = 25211311421
BaseRepresentation
bin1000100101011…
…01000100010010
312000111120221222
410102231010102
5121413341200
611051245042
71533043445
oct422550422
9160446858
1072012050
11377157a0
1220149782
1311bc45a6
1497c765c
1564c6d85
hex44ad112

72012050 has 48 divisors (see below), whose sum is σ = 146937024. Its totient is φ = 26040000.

The previous prime is 72012047. The next prime is 72012053. The reversal of 72012050 is 5021027.

It is an interprime number because it is at equal distance from previous prime (72012047) and next prime (72012053).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72012053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170840 + ... + 171260.

It is an arithmetic number, because the mean of its divisors is an integer number (3061188).

Almost surely, 272012050 is an apocalyptic number.

72012050 is an abundant number, since it is smaller than the sum of its proper divisors (74924974).

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

72012050 is a wasteful number, since it uses less digits than its factorization.

72012050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 72012050 is about 8485.9913975917. The cubic root of 72012050 is about 416.0399716584.

Adding to 72012050 its reverse (5021027), we get a palindrome (77033077).

The spelling of 72012050 in words is "seventy-two million, twelve thousand, fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 311 421 550 622 842 1555 2105 3110 3421 4210 4631 6842 7775 9262 10525 15550 17105 21050 23155 34210 46310 85525 115775 130931 171050 231550 261862 654655 1309310 1440241 2880482 3273275 6546550 7201205 14402410 36006025 72012050