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52991160 = 23351792467
BaseRepresentation
bin1100101000100…
…1010010111000
310200201020012120
43022021102320
5102031204120
65131441240
71212263115
oct312112270
9120636176
1052991160
1127a04052
12158b6220
13ac94a21
14707590c
1549bb140
hex32894b8

52991160 has 64 divisors (see below), whose sum is σ = 159926400. Its totient is φ = 14046336.

The previous prime is 52991153. The next prime is 52991167. The reversal of 52991160 is 6119925.

It is an interprime number because it is at equal distance from previous prime (52991153) and next prime (52991167).

It is a super-3 number, since 3×529911603 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52991167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20247 + ... + 22713.

It is an arithmetic number, because the mean of its divisors is an integer number (2498850).

Almost surely, 252991160 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 52991160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79963200).

52991160 is an abundant number, since it is smaller than the sum of its proper divisors (106935240).

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

52991160 is a wasteful number, since it uses less digits than its factorization.

52991160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660 (or 2656 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 52991160 is about 7279.5027302694. The cubic root of 52991160 is about 375.6076902571.

The spelling of 52991160 in words is "fifty-two million, nine hundred ninety-one thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 179 358 537 716 895 1074 1432 1790 2148 2467 2685 3580 4296 4934 5370 7160 7401 9868 10740 12335 14802 19736 21480 24670 29604 37005 49340 59208 74010 98680 148020 296040 441593 883186 1324779 1766372 2207965 2649558 3532744 4415930 5299116 6623895 8831860 10598232 13247790 17663720 26495580 52991160