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75241121 = 196164919
BaseRepresentation
bin1000111110000…
…01011010100001
312020120122102012
410133001122201
5123230203441
611244402305
71602352604
oct437013241
9166518365
1075241121
113952084a
1221246395
1312785297
149dc833b
1569139eb
hex47c16a1

75241121 has 8 divisors (see below), whose sum is σ = 80500800. Its totient is φ = 70111440.

The previous prime is 75241097. The next prime is 75241141. The reversal of 75241121 is 12114257.

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

It is a cyclic number.

It is not a de Polignac number, because 75241121 - 218 = 74978977 is a prime.

It is a super-2 number, since 2×752411212 = 11322452578673282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75241141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31301 + ... + 33618.

It is an arithmetic number, because the mean of its divisors is an integer number (10062600).

Almost surely, 275241121 is an apocalyptic number.

It is an amenable number.

75241121 is a deficient number, since it is larger than the sum of its proper divisors (5259679).

75241121 is a wasteful number, since it uses less digits than its factorization.

75241121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64999.

The product of its digits is 560, while the sum is 23.

The square root of 75241121 is about 8674.1639942994. The cubic root of 75241121 is about 422.1677810411.

Adding to 75241121 its reverse (12114257), we get a palindrome (87355378).

It can be divided in two parts, 752411 and 21, that multiplied together give a triangular number (15800631 = T5621).

The spelling of 75241121 in words is "seventy-five million, two hundred forty-one thousand, one hundred twenty-one".

Divisors: 1 19 61 1159 64919 1233461 3960059 75241121