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72234712 = 23113126479
BaseRepresentation
bin1000100111000…
…11011011011000
312000220220101201
410103203123120
5121443002322
611100123544
71534661554
oct423433330
9160826351
1072234712
1137858010
12202365b4
1311c71a44
149844864
15651cd27
hex44e36d8

72234712 has 32 divisors (see below), whose sum is σ = 152524800. Its totient is φ = 31773600.

The previous prime is 72234691. The next prime is 72234731. The reversal of 72234712 is 21743227.

It is a congruent number.

It is an unprimeable number.

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, 10512 + ... + 15967.

It is an arithmetic number, because the mean of its divisors is an integer number (4766400).

Almost surely, 272234712 is an apocalyptic number.

It is an amenable number.

72234712 is an abundant number, since it is smaller than the sum of its proper divisors (80290088).

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

72234712 is a wasteful number, since it uses less digits than its factorization.

72234712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26527 (or 26523 counting only the distinct ones).

The product of its digits is 4704, while the sum is 28.

The square root of 72234712 is about 8499.1006583050. The cubic root of 72234712 is about 416.4683304233.

Adding to 72234712 its reverse (21743227), we get a palindrome (93977939).

It can be divided in two parts, 7223 and 4712, that added together give a triangular number (11935 = T154).

The spelling of 72234712 in words is "seventy-two million, two hundred thirty-four thousand, seven hundred twelve".

Divisors: 1 2 4 8 11 22 31 44 62 88 124 248 341 682 1364 2728 26479 52958 105916 211832 291269 582538 820849 1165076 1641698 2330152 3283396 6566792 9029339 18058678 36117356 72234712