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52055430 = 2357487509
BaseRepresentation
bin1100011010010…
…0110110000110
310121221200121220
43012210312012
5101311233210
65055421210
71201315050
oct306446606
9117850556
1052055430
1127425019
1215524806
13aa27b3b
146cb08d0
154883c70
hex31a4d86

52055430 has 64 divisors (see below), whose sum is σ = 143354880. Its totient is φ = 11850624.

The previous prime is 52055429. The next prime is 52055431. The reversal of 52055430 is 3455025.

It is an interprime number because it is at equal distance from previous prime (52055429) and next prime (52055431).

It is a self number, because there is not a number n which added to its sum of digits gives 52055430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52055431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102016 + ... + 102524.

It is an arithmetic number, because the mean of its divisors is an integer number (2239920).

Almost surely, 252055430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52055430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71677440).

52055430 is an abundant number, since it is smaller than the sum of its proper divisors (91299450).

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

52055430 is a wasteful number, since it uses less digits than its factorization.

52055430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 52055430 is about 7214.9449062346. The cubic root of 52055430 is about 373.3836923635.

The spelling of 52055430 in words is "fifty-two million, fifty-five thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 487 509 974 1018 1461 1527 2435 2545 2922 3054 3409 3563 4870 5090 6818 7126 7305 7635 10227 10689 14610 15270 17045 17815 20454 21378 34090 35630 51135 53445 102270 106890 247883 495766 743649 1239415 1487298 1735181 2478830 3470362 3718245 5205543 7436490 8675905 10411086 17351810 26027715 52055430