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73089149 = 717216067
BaseRepresentation
bin1000101101101…
…00000001111101
312002112022110112
410112310001331
5122202323044
611130315405
71545150620
oct426640175
9162468415
1073089149
1138290a61
1220588b65
13121b0923
1499c7db7
15663b09e
hex45b407d

73089149 has 8 divisors (see below), whose sum is σ = 83592768. Its totient is φ = 62601120.

The previous prime is 73089139. The next prime is 73089157. The reversal of 73089149 is 94198037.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-73089149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73089139) 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 7 ways as a sum of consecutive naturals, for example, 9014 + ... + 15080.

It is an arithmetic number, because the mean of its divisors is an integer number (10449096).

Almost surely, 273089149 is an apocalyptic number.

It is an amenable number.

73089149 is a deficient number, since it is larger than the sum of its proper divisors (10503619).

73089149 is a wasteful number, since it uses less digits than its factorization.

73089149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 73089149 is about 8549.2192041145. The cubic root of 73089149 is about 418.1039800692.

The spelling of 73089149 in words is "seventy-three million, eighty-nine thousand, one hundred forty-nine".

Divisors: 1 7 1721 6067 12047 42469 10441307 73089149