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73280034 = 2325577309
BaseRepresentation
bin1000101111000…
…10101000100010
312002220000022100
410113202220202
5122224430114
611134351230
71546604262
oct427425042
9162800270
1073280034
1138401413
122065b516
1312249789
149a377a2
156677909
hex45e2a22

73280034 has 24 divisors (see below), whose sum is σ = 159080220. Its totient is φ = 24379488.

The previous prime is 73280033. The next prime is 73280057. The reversal of 73280034 is 43008237.

It can be written as a sum of positive squares in 2 ways, for example, as 68013009 + 5267025 = 8247^2 + 2295^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73280033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6372 + ... + 13680.

Almost surely, 273280034 is an apocalyptic number.

73280034 is an abundant number, since it is smaller than the sum of its proper divisors (85800186).

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

73280034 is a wasteful number, since it uses less digits than its factorization.

73280034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7874 (or 7871 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 73280034 is about 8560.3758095074. The cubic root of 73280034 is about 418.4676473665.

The spelling of 73280034 in words is "seventy-three million, two hundred eighty thousand, thirty-four".

Divisors: 1 2 3 6 9 18 557 1114 1671 3342 5013 7309 10026 14618 21927 43854 65781 131562 4071113 8142226 12213339 24426678 36640017 73280034