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73438385 = 5171276803
BaseRepresentation
bin1000110000010…
…01010010110001
312010012001112012
410120021102301
5122300012020
611142012305
71551134036
oct430112261
9163161465
1073438385
11384aa389
1220717095
13122a3887
149a7938d
1566a97c5
hex46094b1

73438385 has 16 divisors (see below), whose sum is σ = 94058496. Its totient is φ = 54851328.

The previous prime is 73438381. The next prime is 73438459. The reversal of 73438385 is 58383437.

It is a cyclic number.

It is not a de Polignac number, because 73438385 - 22 = 73438381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73438381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7394 + ... + 14196.

It is an arithmetic number, because the mean of its divisors is an integer number (5878656).

Almost surely, 273438385 is an apocalyptic number.

It is an amenable number.

73438385 is a deficient number, since it is larger than the sum of its proper divisors (20620111).

73438385 is a wasteful number, since it uses less digits than its factorization.

73438385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6952.

The product of its digits is 241920, while the sum is 41.

The square root of 73438385 is about 8569.6198865527. The cubic root of 73438385 is about 418.7688530904.

The spelling of 73438385 in words is "seventy-three million, four hundred thirty-eight thousand, three hundred eighty-five".

Divisors: 1 5 17 85 127 635 2159 6803 10795 34015 115651 578255 863981 4319905 14687677 73438385