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52918572 = 22371971467
BaseRepresentation
bin1100100111011…
…1100100101100
310200120112122010
43021313210230
5102021343242
65130121220
71211541360
oct311674454
9120515563
1052918572
1127964563
1215880210
13ac6a985
1470572a0
1549a489c
hex327792c

52918572 has 96 divisors (see below), whose sum is σ = 150958080. Its totient is φ = 14091840.

The previous prime is 52918571. The next prime is 52918601. The reversal of 52918572 is 27581925.

It is a self number, because there is not a number n which added to its sum of digits gives 52918572.

It is not an unprimeable number, because it can be changed into a prime (52918571) 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, 113083 + ... + 113549.

It is an arithmetic number, because the mean of its divisors is an integer number (1572480).

Almost surely, 252918572 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 52918572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75479040).

52918572 is an abundant number, since it is smaller than the sum of its proper divisors (98039508).

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

52918572 is a wasteful number, since it uses less digits than its factorization.

52918572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 569 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 52918572 is about 7274.5152415814. The cubic root of 52918572 is about 375.4361077413.

The spelling of 52918572 in words is "fifty-two million, nine hundred eighteen thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 71 76 84 114 133 142 213 228 266 284 399 426 467 497 532 798 852 934 994 1349 1401 1491 1596 1868 1988 2698 2802 2982 3269 4047 5396 5604 5964 6538 8094 8873 9443 9807 13076 16188 17746 18886 19614 26619 28329 33157 35492 37772 39228 53238 56658 62111 66314 99471 106476 113316 124222 132628 186333 198942 232099 248444 372666 397884 464198 629983 696297 745332 928396 1259966 1392594 1889949 2519932 2785188 3779898 4409881 7559796 8819762 13229643 17639524 26459286 52918572