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72930589 = 372238839
BaseRepresentation
bin1000101100011…
…01010100011101
312002020020221221
410112031110131
5122132234324
611123053341
71543620424
oct426152435
9162206857
1072930589
1138192916
1220511251
13121566c4
1499862bb
1566090e4
hex458d51d

72930589 has 8 divisors (see below), whose sum is σ = 75246080. Its totient is φ = 70633296.

The previous prime is 72930553. The next prime is 72930617. The reversal of 72930589 is 98503927.

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 72930589 - 221 = 70833437 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 (72939589) by changing a digit.

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, 3832 + ... + 12670.

It is an arithmetic number, because the mean of its divisors is an integer number (9405760).

Almost surely, 272930589 is an apocalyptic number.

It is an amenable number.

72930589 is a deficient number, since it is larger than the sum of its proper divisors (2315491).

72930589 is a wasteful number, since it uses less digits than its factorization.

72930589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 72930589 is about 8539.9408077574. The cubic root of 72930589 is about 417.8014154807.

The spelling of 72930589 in words is "seventy-two million, nine hundred thirty thousand, five hundred eighty-nine".

Divisors: 1 37 223 8251 8839 327043 1971097 72930589