Search a number
-
+
30515239784652 = 22373734928132631
BaseRepresentation
bin1101111000000111000100…
…00001110001000011001100
311000001020011112020202010020
412330003202001301003030
512444430202341102102
6144522301351542140
76266440042322610
oct674034201610314
9130036145222106
1030515239784652
1197a54933672a7
12350a08408a950
1314047619acb7c
14776d345b1340
1537db887d8bbc
hex1bc0e20710cc

30515239784652 has 96 divisors (see below), whose sum is σ = 83812737254400. Its totient is φ = 8458694127360.

The previous prime is 30515239784597. The next prime is 30515239784657. The reversal of 30515239784652 is 25648793251503.

It is a super-2 number, since 2×305152397846522 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30515239784657) 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, 12981624 + ... + 15151007.

It is an arithmetic number, because the mean of its divisors is an integer number (873049346400).

It is a 1-persistent number, because it is pandigital, but 2⋅30515239784652 = 61030479569304 is not.

Almost surely, 230515239784652 is an apocalyptic number.

It is an amenable number.

30515239784652 is an abundant number, since it is smaller than the sum of its proper divisors (53297497469748).

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

30515239784652 is a wasteful number, since it uses less digits than its factorization.

30515239784652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28133031 (or 28133029 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 60.

The spelling of 30515239784652 in words is "thirty trillion, five hundred fifteen billion, two hundred thirty-nine million, seven hundred eighty-four thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 74 84 111 148 222 259 349 444 518 698 777 1036 1047 1396 1554 2094 2443 3108 4188 4886 7329 9772 12913 14658 25826 29316 38739 51652 77478 90391 154956 180782 271173 361564 542346 1084692 28132631 56265262 84397893 112530524 168795786 196928417 337591572 393856834 590785251 787713668 1040907347 1181570502 2081814694 2363141004 3122722041 4163629388 6245444082 7286351429 9818288219 12490888164 14572702858 19636576438 21859054287 29145405716 29454864657 39273152876 43718108574 58909729314 68728017533 87436217148 117819458628 137456035066 206184052599 274912070132 363276664103 412368105198 726553328206 824736210396 1089829992309 1453106656412 2179659984618 2542936648721 4359319969236 5085873297442 7628809946163 10171746594884 15257619892326 30515239784652