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73286164 = 2272373909
BaseRepresentation
bin1000101111001…
…00001000010100
312002220022201101
410113210020110
5122230124124
611134435444
71546631200
oct427441024
9162808641
1073286164
1138405a86
1220662b84
131224c4c3
149a39b00
156679644
hex45e4214

73286164 has 18 divisors (see below), whose sum is σ = 149190090. Its totient is φ = 31408272.

The previous prime is 73286149. The next prime is 73286281. The reversal of 73286164 is 46168237.

It can be written as a sum of positive squares in only one way, i.e., 67076100 + 6210064 = 8190^2 + 2492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186759 + ... + 187150.

Almost surely, 273286164 is an apocalyptic number.

It is an amenable number.

73286164 is an abundant number, since it is smaller than the sum of its proper divisors (75903926).

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

73286164 is a wasteful number, since it uses less digits than its factorization.

73286164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373927 (or 373918 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 73286164 is about 8560.7338470484. The cubic root of 73286164 is about 418.4793155523.

The spelling of 73286164 in words is "seventy-three million, two hundred eighty-six thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 49 98 196 373909 747818 1495636 2617363 5234726 10469452 18321541 36643082 73286164