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52111170252 = 223217231161573
BaseRepresentation
bin110000100010000100…
…010101101011001100
311222111201100201202200
4300202010111223030
51323210424422002
635534535121500
73523235432031
oct604204255314
9158451321680
1052111170252
1120111440559
12a123b13290
134bb626bcab
142744c87388
15154edb6b1c
hexc22115acc

52111170252 has 108 divisors (see below), whose sum is σ = 144444570816. Its totient is φ = 15821130240.

The previous prime is 52111170247. The next prime is 52111170257. The reversal of 52111170252 is 25207111125.

52111170252 is a `hidden beast` number, since 521 + 1 + 117 + 0 + 25 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (52111170247) and next prime (52111170257).

It is not an unprimeable number, because it can be changed into a prime (52111170257) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 241738 + ... + 403310.

Almost surely, 252111170252 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 52111170252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72222285408).

52111170252 is an abundant number, since it is smaller than the sum of its proper divisors (92333400564).

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

52111170252 is a wasteful number, since it uses less digits than its factorization.

52111170252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161648 (or 161626 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

Adding to 52111170252 its reverse (25207111125), we get a palindrome (77318281377).

The spelling of 52111170252 in words is "fifty-two billion, one hundred eleven million, one hundred seventy thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 17 18 31 34 36 51 62 68 93 102 124 153 186 204 279 289 306 372 527 558 578 612 867 1054 1116 1156 1581 1734 2108 2601 3162 3468 4743 5202 6324 8959 9486 10404 17918 18972 26877 35836 53754 80631 107508 161262 161573 322524 323146 484719 646292 969438 1454157 1938876 2746741 2908314 5008763 5493482 5816628 8240223 10017526 10986964 15026289 16480446 20035052 24720669 30052578 32960892 45078867 46694597 49441338 60105156 85148971 90157734 93389194 98882676 140083791 170297942 180315468 186778388 255446913 280167582 340595884 420251373 510893826 560335164 766340739 840502746 1021787652 1447532507 1532681478 1681005492 2895065014 3065362956 4342597521 5790130028 8685195042 13027792563 17370390084 26055585126 52111170252