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73368140 = 2253668407
BaseRepresentation
bin1000101111110…
…00001001001100
312010001111011112
410113320021030
5122240240030
611140311152
71550422166
oct427701114
9163044145
1073368140
113846162a
12206a24b8
131227a901
149a5b936
156693a95
hex45f824c

73368140 has 12 divisors (see below), whose sum is σ = 154073136. Its totient is φ = 29347248.

The previous prime is 73368133. The next prime is 73368143. The reversal of 73368140 is 4186337.

It is a junction number, because it is equal to n+sod(n) for n = 73368097 and 73368106.

It is not an unprimeable number, because it can be changed into a prime (73368143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1834184 + ... + 1834223.

It is an arithmetic number, because the mean of its divisors is an integer number (12839428).

Almost surely, 273368140 is an apocalyptic number.

It is an amenable number.

73368140 is an abundant number, since it is smaller than the sum of its proper divisors (80704996).

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

73368140 is a wasteful number, since it uses less digits than its factorization.

73368140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3668416 (or 3668414 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 73368140 is about 8565.5204161802. The cubic root of 73368140 is about 418.6352907753.

The spelling of 73368140 in words is "seventy-three million, three hundred sixty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 3668407 7336814 14673628 18342035 36684070 73368140