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75252470 = 257525247
BaseRepresentation
bin1000111110001…
…00001011110110
312020121012222112
410133010023312
5123231034340
611244531022
71602430646
oct437041366
9166535875
1075252470
1139529327
1221250a72
131278a4b7
149dcc526
156917065
hex47c42f6

75252470 has 8 divisors (see below), whose sum is σ = 135454464. Its totient is φ = 30100984.

The previous prime is 75252461. The next prime is 75252473. The reversal of 75252470 is 7425257.

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

It is a super-2 number, since 2×752524702 = 11325868482201800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75252473) 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, 3762614 + ... + 3762633.

It is an arithmetic number, because the mean of its divisors is an integer number (16931808).

Almost surely, 275252470 is an apocalyptic number.

75252470 is a deficient number, since it is larger than the sum of its proper divisors (60201994).

75252470 is a wasteful number, since it uses less digits than its factorization.

75252470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7525254.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 75252470 is about 8674.8181537137. The cubic root of 75252470 is about 422.1890058767.

The spelling of 75252470 in words is "seventy-five million, two hundred fifty-two thousand, four hundred seventy".

Divisors: 1 2 5 10 7525247 15050494 37626235 75252470