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75310740 = 223252318191
BaseRepresentation
bin1000111110100…
…10011010010100
312020201011220200
410133102122110
5123234420430
611250100500
71603062561
oct437223224
9166634820
1075310740
113956908a
122127a730
13127aab8b
14a005868
156929460
hex47d2694

75310740 has 72 divisors (see below), whose sum is σ = 238387968. Its totient is φ = 19208640.

The previous prime is 75310733. The next prime is 75310757. The reversal of 75310740 is 4701357.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4956 + ... + 13235.

It is an arithmetic number, because the mean of its divisors is an integer number (3310944).

Almost surely, 275310740 is an apocalyptic number.

It is an amenable number.

75310740 is an abundant number, since it is smaller than the sum of its proper divisors (163077228).

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

75310740 is a wasteful number, since it uses less digits than its factorization.

75310740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18229 (or 18224 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 75310740 is about 8678.1760756509. The cubic root of 75310740 is about 422.2979485084.

The spelling of 75310740 in words is "seventy-five million, three hundred ten thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 23 30 36 45 46 60 69 90 92 115 138 180 207 230 276 345 414 460 690 828 1035 1380 2070 4140 18191 36382 54573 72764 90955 109146 163719 181910 218292 272865 327438 363820 418393 545730 654876 818595 836786 1091460 1255179 1637190 1673572 2091965 2510358 3274380 3765537 4183930 5020716 6275895 7531074 8367860 12551790 15062148 18827685 25103580 37655370 75310740