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75090950 = 25211311439
BaseRepresentation
bin1000111100111…
…00110000000110
312020022000102022
410132130300012
5123210402300
611241243142
71601156024
oct436346006
9166260368
1075090950
1139428a40
12211934b2
1312731b1c
149d89714
1568d4285
hex479cc06

75090950 has 48 divisors (see below), whose sum is σ = 153204480. Its totient is φ = 27156000.

The previous prime is 75090923. The next prime is 75090973. The reversal of 75090950 is 5909057.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75090950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170831 + ... + 171269.

It is an arithmetic number, because the mean of its divisors is an integer number (3191760).

Almost surely, 275090950 is an apocalyptic number.

75090950 is an abundant number, since it is smaller than the sum of its proper divisors (78113530).

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

75090950 is a wasteful number, since it uses less digits than its factorization.

75090950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 35.

The square root of 75090950 is about 8665.5034475788. The cubic root of 75090950 is about 421.8867309038.

The spelling of 75090950 in words is "seventy-five million, ninety thousand, nine hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 311 439 550 622 878 1555 2195 3110 3421 4390 4829 6842 7775 9658 10975 15550 17105 21950 24145 34210 48290 85525 120725 136529 171050 241450 273058 682645 1365290 1501819 3003638 3413225 6826450 7509095 15018190 37545475 75090950