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75042032 = 2413360779
BaseRepresentation
bin1000111100100…
…00110011110000
312020012112022112
410132100303300
5123202321112
611240224452
71600563302
oct436206360
9166175275
1075042032
11393a520a
122116b128
1312715790
149d75972
1568c4a22
hex4790cf0

75042032 has 20 divisors (see below), whose sum is σ = 156578520. Its totient is φ = 34634688.

The previous prime is 75042007. The next prime is 75042049. The reversal of 75042032 is 23024057.

It is a junction number, because it is equal to n+sod(n) for n = 75041989 and 75042007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180182 + ... + 180597.

It is an arithmetic number, because the mean of its divisors is an integer number (7828926).

Almost surely, 275042032 is an apocalyptic number.

It is an amenable number.

75042032 is an abundant number, since it is smaller than the sum of its proper divisors (81536488).

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

75042032 is a wasteful number, since it uses less digits than its factorization.

75042032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360800 (or 360794 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 75042032 is about 8662.6804165916. The cubic root of 75042032 is about 421.7950982981.

Adding to 75042032 its reverse (23024057), we get a palindrome (98066089).

The spelling of 75042032 in words is "seventy-five million, forty-two thousand, thirty-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 360779 721558 1443116 2886232 4690127 5772464 9380254 18760508 37521016 75042032