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72482772 = 2236040231
BaseRepresentation
bin1000101000111…
…11111111010100
312001101111200010
410110133333110
5122023422042
611105320220
71540044015
oct424377724
9161344603
1072482772
1137a0741a
1220336070
131202a91b
1498ab00c
15656b59c
hex451ffd4

72482772 has 12 divisors (see below), whose sum is σ = 169126496. Its totient is φ = 24160920.

The previous prime is 72482771. The next prime is 72482779. The reversal of 72482772 is 27728427.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 72482772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72482771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3020104 + ... + 3020127.

Almost surely, 272482772 is an apocalyptic number.

It is an amenable number.

72482772 is an abundant number, since it is smaller than the sum of its proper divisors (96643724).

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

72482772 is a wasteful number, since it uses less digits than its factorization.

72482772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6040238 (or 6040236 counting only the distinct ones).

The product of its digits is 87808, while the sum is 39.

The square root of 72482772 is about 8513.6814598621. The cubic root of 72482772 is about 416.9445146977.

The spelling of 72482772 in words is "seventy-two million, four hundred eighty-two thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 6040231 12080462 18120693 24160924 36241386 72482772