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72080723 = 1113504061
BaseRepresentation
bin1000100101111…
…01110101010011
312000122002011102
410102331311103
5121423040343
611052535015
71533450611
oct422756523
9160562142
1072080723
1137762350
122018146b
1311c19920
1498046b1
1564dc3b8
hex44bdd53

72080723 has 8 divisors (see below), whose sum is σ = 84682416. Its totient is φ = 60487200.

The previous prime is 72080683. The next prime is 72080753. The reversal of 72080723 is 32708027.

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

It is a cyclic number.

It is not a de Polignac number, because 72080723 - 214 = 72064339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72080753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251888 + ... + 252173.

It is an arithmetic number, because the mean of its divisors is an integer number (10585302).

Almost surely, 272080723 is an apocalyptic number.

72080723 is a deficient number, since it is larger than the sum of its proper divisors (12601693).

72080723 is a wasteful number, since it uses less digits than its factorization.

72080723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504085.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 72080723 is about 8490.0366901445. The cubic root of 72080723 is about 416.1721793274.

The spelling of 72080723 in words is "seventy-two million, eighty thousand, seven hundred twenty-three".

Divisors: 1 11 13 143 504061 5544671 6552793 72080723