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73379985 = 3575091373
BaseRepresentation
bin1000101111110…
…11000010010001
312010002002102020
410113323002101
5122241124420
611140442053
71550501550
oct427730221
9163062366
1073379985
113846a518
12206a9329
1312283113
149a61d97
156697340
hex45fb091

73379985 has 32 divisors (see below), whose sum is σ = 134542080. Its totient is φ = 33454848.

The previous prime is 73379983. The next prime is 73379989. The reversal of 73379985 is 58997337.

It is a happy number.

It is not a de Polignac number, because 73379985 - 21 = 73379983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73379983) 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 31 ways as a sum of consecutive naturals, for example, 52759 + ... + 54131.

It is an arithmetic number, because the mean of its divisors is an integer number (4204440).

Almost surely, 273379985 is an apocalyptic number.

It is an amenable number.

73379985 is a deficient number, since it is larger than the sum of its proper divisors (61162095).

73379985 is a wasteful number, since it uses less digits than its factorization.

73379985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897.

The product of its digits is 1428840, while the sum is 51.

The square root of 73379985 is about 8566.2118232040. The cubic root of 73379985 is about 418.6578185745.

The spelling of 73379985 in words is "seventy-three million, three hundred seventy-nine thousand, nine hundred eighty-five".

Divisors: 1 3 5 7 15 21 35 105 509 1373 1527 2545 3563 4119 6865 7635 9611 10689 17815 20595 28833 48055 53445 144165 698857 2096571 3494285 4891999 10482855 14675997 24459995 73379985