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72126150 = 23523115511
BaseRepresentation
bin1000100110010…
…00111011000110
312000201101110220
410103020323012
5121431014100
611053525210
71534030215
oct423107306
9160641426
1072126150
1137793498
12201a3806
1311c344c5
14981707c
1564eaaa0
hex44c8ec6

72126150 has 48 divisors (see below), whose sum is σ = 184654848. Its totient is φ = 18612000.

The previous prime is 72126133. The next prime is 72126151. The reversal of 72126150 is 5162127.

It is a self number, because there is not a number n which added to its sum of digits gives 72126150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72126151) 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, 3106 + ... + 12405.

It is an arithmetic number, because the mean of its divisors is an integer number (3846976).

Almost surely, 272126150 is an apocalyptic number.

72126150 is an abundant number, since it is smaller than the sum of its proper divisors (112528698).

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

72126150 is a wasteful number, since it uses less digits than its factorization.

72126150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15557 (or 15552 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 72126150 is about 8492.7115811147. The cubic root of 72126150 is about 416.2595881964.

Adding to 72126150 its reverse (5162127), we get a palindrome (77288277).

The spelling of 72126150 in words is "seventy-two million, one hundred twenty-six thousand, one hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 31 50 62 75 93 150 155 186 310 465 775 930 1550 2325 4650 15511 31022 46533 77555 93066 155110 232665 387775 465330 480841 775550 961682 1163325 1442523 2326650 2404205 2885046 4808410 7212615 12021025 14425230 24042050 36063075 72126150