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75121150 = 25213115571
BaseRepresentation
bin1000111101001…
…00000111111110
312020100112211211
410132210013332
5123212334100
611242035034
71601343046
oct436440776
9166315754
1075121150
11394496a5
12211a8a7a
13127427b0
149d96726
1568dd1ba
hex47a41fe

75121150 has 24 divisors (see below), whose sum is σ = 150474744. Its totient is φ = 27736800.

The previous prime is 75121139. The next prime is 75121159. The reversal of 75121150 is 5112157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75121159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57136 + ... + 58435.

It is an arithmetic number, because the mean of its divisors is an integer number (6269781).

Almost surely, 275121150 is an apocalyptic number.

75121150 is an abundant number, since it is smaller than the sum of its proper divisors (75353594).

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

75121150 is a wasteful number, since it uses less digits than its factorization.

75121150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115596 (or 115591 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 75121150 is about 8667.2458139827. The cubic root of 75121150 is about 421.9432813119.

The spelling of 75121150 in words is "seventy-five million, one hundred twenty-one thousand, one hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 115571 231142 577855 1155710 1502423 2889275 3004846 5778550 7512115 15024230 37560575 75121150