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53075070 = 23252332531
BaseRepresentation
bin1100101001110…
…1110001111110
310200212111022100
43022131301332
5102041400240
65133325530
71213062546
oct312356176
9120774270
1053075070
1127a610a4
12159368a6
13acc3c89
147098326
1549d5e30
hex329dc7e

53075070 has 48 divisors (see below), whose sum is σ = 138642192. Its totient is φ = 14087040.

The previous prime is 53075059. The next prime is 53075089. The reversal of 53075070 is 7057035.

It is a Curzon number.

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, 19705 + ... + 22235.

It is an arithmetic number, because the mean of its divisors is an integer number (2888379).

Almost surely, 253075070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53075070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69321096).

53075070 is an abundant number, since it is smaller than the sum of its proper divisors (85567122).

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

53075070 is a wasteful number, since it uses less digits than its factorization.

53075070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777 (or 2774 counting only the distinct ones).

The product of its (nonzero) digits is 3675, while the sum is 27.

The square root of 53075070 is about 7285.2638936417. The cubic root of 53075070 is about 375.8058404162.

The spelling of 53075070 in words is "fifty-three million, seventy-five thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 233 466 699 1165 1398 2097 2330 2531 3495 4194 5062 6990 7593 10485 12655 15186 20970 22779 25310 37965 45558 75930 113895 227790 589723 1179446 1769169 2948615 3538338 5307507 5897230 8845845 10615014 17691690 26537535 53075070