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52711230 = 235112131117
BaseRepresentation
bin1100100100010…
…0111100111110
310200012000012210
43021010330332
5101443224410
65121441250
71210016025
oct311047476
9120160183
1052711230
1127832800
12157a0226
13abc74a0
1470018bc
154963220
hex3244f3e

52711230 has 96 divisors (see below), whose sum is σ = 149883552. Its totient is φ = 11784960.

The previous prime is 52711213. The next prime is 52711261. The reversal of 52711230 is 3211725.

It is a super-2 number, since 2×527112302 = 5556947536225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52711197 and 52711206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46632 + ... + 47748.

It is an arithmetic number, because the mean of its divisors is an integer number (1561287).

Almost surely, 252711230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52711230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74941776).

52711230 is an abundant number, since it is smaller than the sum of its proper divisors (97172322).

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

52711230 is a wasteful number, since it uses less digits than its factorization.

52711230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 52711230 is about 7260.2499956957. The cubic root of 52711230 is about 374.9451297495.

Adding to 52711230 its reverse (3211725), we get a palindrome (55922955).

The spelling of 52711230 in words is "fifty-two million, seven hundred eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 13 15 22 26 30 33 39 55 65 66 78 110 121 130 143 165 195 242 286 330 363 390 429 605 715 726 858 1117 1210 1430 1573 1815 2145 2234 3146 3351 3630 4290 4719 5585 6702 7865 9438 11170 12287 14521 15730 16755 23595 24574 29042 33510 36861 43563 47190 61435 72605 73722 87126 122870 135157 145210 159731 184305 217815 270314 319462 368610 405471 435630 479193 675785 798655 810942 958386 1351570 1597310 1757041 2027355 2395965 3514082 4054710 4791930 5271123 8785205 10542246 17570410 26355615 52711230