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72563132 = 2218140783
BaseRepresentation
bin1000101001100…
…11100110111100
312001112120220102
410110303212330
5122034010012
611111140232
71540530215
oct424634674
9161476812
1072563132
1137a61834
1220374678
1312058385
1498cc40c
1565852c2
hex45339bc

72563132 has 6 divisors (see below), whose sum is σ = 126985488. Its totient is φ = 36281564.

The previous prime is 72563131. The next prime is 72563167. The reversal of 72563132 is 23136527.

It is a junction number, because it is equal to n+sod(n) for n = 72563095 and 72563104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72563131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9070388 + ... + 9070395.

It is an arithmetic number, because the mean of its divisors is an integer number (21164248).

Almost surely, 272563132 is an apocalyptic number.

It is an amenable number.

72563132 is a deficient number, since it is larger than the sum of its proper divisors (54422356).

72563132 is a wasteful number, since it uses less digits than its factorization.

72563132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140787 (or 18140785 counting only the distinct ones).

The product of its digits is 7560, while the sum is 29.

The square root of 72563132 is about 8518.3996149512. The cubic root of 72563132 is about 417.0985434210.

Adding to 72563132 its reverse (23136527), we get a palindrome (95699659).

The spelling of 72563132 in words is "seventy-two million, five hundred sixty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 18140783 36281566 72563132