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75349212 = 22319973407
BaseRepresentation
bin1000111110110…
…11110011011100
312020210010200120
410133123303130
5123242133322
611250554540
71603313001
oct437336334
9166703616
1075349212
1139594a84
1221298a50
13127c2543
14a0158a8
156935a5c
hex47dbcdc

75349212 has 48 divisors (see below), whose sum is σ = 187031040. Its totient is φ = 23542272.

The previous prime is 75349207. The next prime is 75349223. The reversal of 75349212 is 21294357.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20413 + ... + 23819.

It is an arithmetic number, because the mean of its divisors is an integer number (3896480).

Almost surely, 275349212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75349212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93515520).

75349212 is an abundant number, since it is smaller than the sum of its proper divisors (111681828).

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

75349212 is a wasteful number, since it uses less digits than its factorization.

75349212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530 (or 3528 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 75349212 is about 8680.3923874442. The cubic root of 75349212 is about 422.3698456507.

The spelling of 75349212 in words is "seventy-five million, three hundred forty-nine thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 97 114 194 228 291 388 582 1164 1843 3407 3686 5529 6814 7372 10221 11058 13628 20442 22116 40884 64733 129466 194199 258932 330479 388398 660958 776796 991437 1321916 1982874 3965748 6279101 12558202 18837303 25116404 37674606 75349212