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73230516 = 22322034181
BaseRepresentation
bin1000101110101…
…10100010110100
312002210111101100
410113112202310
5122221334031
611133330100
71546310022
oct427264264
9162714340
1073230516
1138378197
1220636930
1312230088
149a23712
156667de6
hex45d68b4

73230516 has 18 divisors (see below), whose sum is σ = 185110562. Its totient is φ = 24410160.

The previous prime is 73230457. The next prime is 73230517. The reversal of 73230516 is 61503237.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 46294416 + 26936100 = 6804^2 + 5190^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 73230516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73230517) 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 5 ways as a sum of consecutive naturals, for example, 1017055 + ... + 1017126.

Almost surely, 273230516 is an apocalyptic number.

It is an amenable number.

73230516 is an abundant number, since it is smaller than the sum of its proper divisors (111880046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73230516 is a wasteful number, since it uses less digits than its factorization.

73230516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034191 (or 2034186 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 73230516 is about 8557.4830411751. The cubic root of 73230516 is about 418.3733681608.

The spelling of 73230516 in words is "seventy-three million, two hundred thirty thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 36 2034181 4068362 6102543 8136724 12205086 18307629 24410172 36615258 73230516