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75160989 = 3234923929
BaseRepresentation
bin1000111101011…
…01110110011101
312020102120111100
410132231312131
5123220122424
611242543313
71601600151
oct436556635
9166376440
1075160989
1139476622
1221207b39
1312757977
149da7061
1568e9dc9
hex47add9d

75160989 has 12 divisors (see below), whose sum is σ = 108881500. Its totient is φ = 49961664.

The previous prime is 75160951. The next prime is 75160993. The reversal of 75160989 is 98906157.

It can be written as a sum of positive squares in 2 ways, for example, as 53538489 + 21622500 = 7317^2 + 4650^2 .

It is a de Polignac number, because none of the positive numbers 2k-75160989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75160909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8824 + ... + 15105.

Almost surely, 275160989 is an apocalyptic number.

It is an amenable number.

75160989 is a deficient number, since it is larger than the sum of its proper divisors (33720511).

75160989 is a wasteful number, since it uses less digits than its factorization.

75160989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24284 (or 24281 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 75160989 is about 8669.5437596220. The cubic root of 75160989 is about 422.0178578578.

The spelling of 75160989 in words is "seventy-five million, one hundred sixty thousand, nine hundred eighty-nine".

Divisors: 1 3 9 349 1047 3141 23929 71787 215361 8351221 25053663 75160989