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72620589 = 3144716729
BaseRepresentation
bin1000101010000…
…01101000101101
312001122111201110
410111001220231
5122042324324
611112302233
71541156556
oct425015055
9161574643
1072620589
1137aa0a18
12203a1979
1312078582
14990532d
156597329
hex4541a2d

72620589 has 8 divisors (see below), whose sum is σ = 96900160. Its totient is φ = 48377376.

The previous prime is 72620573. The next prime is 72620599. The reversal of 72620589 is 98502627.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72620589 - 24 = 72620573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72620539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4024 + ... + 12705.

It is an arithmetic number, because the mean of its divisors is an integer number (12112520).

Almost surely, 272620589 is an apocalyptic number.

It is an amenable number.

72620589 is a deficient number, since it is larger than the sum of its proper divisors (24279571).

72620589 is a wasteful number, since it uses less digits than its factorization.

72620589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18179.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 72620589 is about 8521.7714707683. The cubic root of 72620589 is about 417.2086034830.

The spelling of 72620589 in words is "seventy-two million, six hundred twenty thousand, five hundred eighty-nine".

Divisors: 1 3 1447 4341 16729 50187 24206863 72620589