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75121364 = 2219988439
BaseRepresentation
bin1000111101001…
…00001011010100
312020100120010202
410132210023110
5123212340424
611242040032
71601343503
oct436441324
9166316122
1075121364
113944987a
12211a9018
1312742916
149d9683a
1568dd2ae
hex47a42d4

75121364 has 12 divisors (see below), whose sum is σ = 138381600. Its totient is φ = 35583768.

The previous prime is 75121363. The next prime is 75121373. The reversal of 75121364 is 46312157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75121363) 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, 494144 + ... + 494295.

It is an arithmetic number, because the mean of its divisors is an integer number (11531800).

Almost surely, 275121364 is an apocalyptic number.

It is an amenable number.

75121364 is a deficient number, since it is larger than the sum of its proper divisors (63260236).

75121364 is a wasteful number, since it uses less digits than its factorization.

75121364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988462 (or 988460 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 75121364 is about 8667.2581593027. The cubic root of 75121364 is about 421.9436819793.

The spelling of 75121364 in words is "seventy-five million, one hundred twenty-one thousand, three hundred sixty-four".

Divisors: 1 2 4 19 38 76 988439 1976878 3953756 18780341 37560682 75121364