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73065641 = 1123535449
BaseRepresentation
bin1000101101011…
…10010010101001
312002111010012212
410112232102221
5122201100031
611130014505
71545022235
oct426562251
9162433185
1073065641
1138275330
1220577435
13121a300c
1499bd5c5
15663412b
hex45ae4a9

73065641 has 16 divisors (see below), whose sum is σ = 84758400. Its totient is φ = 62325120.

The previous prime is 73065637. The next prime is 73065701. The reversal of 73065641 is 14656037.

It is not a de Polignac number, because 73065641 - 22 = 73065637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73065598 and 73065607.

It is not an unprimeable number, because it can be changed into a prime (73065611) 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 15 ways as a sum of consecutive naturals, for example, 10685 + ... + 16133.

It is an arithmetic number, because the mean of its divisors is an integer number (5297400).

Almost surely, 273065641 is an apocalyptic number.

It is an amenable number.

73065641 is a deficient number, since it is larger than the sum of its proper divisors (11692759).

73065641 is a wasteful number, since it uses less digits than its factorization.

73065641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 73065641 is about 8547.8442311497. The cubic root of 73065641 is about 418.0591496922.

The spelling of 73065641 in words is "seventy-three million, sixty-five thousand, six hundred forty-one".

Divisors: 1 11 23 53 253 583 1219 5449 13409 59939 125327 288797 1378597 3176767 6642331 73065641