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75290064 = 2431568543
BaseRepresentation
bin1000111110011…
…01010111010000
312020200010112220
410133031113100
5123233240224
611245421040
71602645363
oct437152720
9166603486
1075290064
11395545a3
122126a780
13127a1645
149ddc0da
156923279
hex47cd5d0

75290064 has 20 divisors (see below), whose sum is σ = 194499456. Its totient is φ = 25096672.

The previous prime is 75290057. The next prime is 75290123. The reversal of 75290064 is 46009257.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784224 + ... + 784319.

Almost surely, 275290064 is an apocalyptic number.

It is an amenable number.

75290064 is an abundant number, since it is smaller than the sum of its proper divisors (119209392).

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

75290064 is a wasteful number, since it uses less digits than its factorization.

75290064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568554 (or 1568548 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 75290064 is about 8676.9847297319. The cubic root of 75290064 is about 422.2592987242.

The spelling of 75290064 in words is "seventy-five million, two hundred ninety thousand, sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 1568543 3137086 4705629 6274172 9411258 12548344 18822516 25096688 37645032 75290064