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102102102211212 = 223343119318429011
BaseRepresentation
bin10111001101110001111111…
…100010000111101010001100
3111101111212101001111010011000
4113031301333202013222030
5101340320101131224322
61001053020324300300
730335430163132425
oct2715617742075214
9441455331433130
10102102102211212
112a5952929a14a4
12b5500a3541690
1344c82578a01bc
141b2daa79c664c
15bc0d9b3393ac
hex5cdc7f887a8c

102102102211212 has 96 divisors (see below), whose sum is σ = 271092240840960. Its totient is φ = 33214678439040.

The previous prime is 102102102211073. The next prime is 102102102211247. The reversal of 102102102211212 is 212112201201201.

102102102211212 is a `hidden beast` number, since 1 + 0 + 21 + 0 + 210 + 221 + 1 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3674214 + ... + 14754797.

It is an arithmetic number, because the mean of its divisors is an integer number (2823877508760).

Almost surely, 2102102102211212 is an apocalyptic number.

102102102211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102102102211212 is an abundant number, since it is smaller than the sum of its proper divisors (168990138629748).

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

102102102211212 is a wasteful number, since it uses less digits than its factorization.

102102102211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18430260 (or 18430252 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102102102211212 its reverse (212112201201201), we get a palindrome (314214303412413).

The spelling of 102102102211212 in words is "one hundred two trillion, one hundred two billion, one hundred two million, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 43 54 86 108 129 172 258 387 516 774 1161 1193 1548 2322 2386 3579 4644 4772 7158 10737 14316 21474 32211 42948 51299 64422 102598 128844 153897 205196 307794 461691 615588 923382 1385073 1846764 2770146 5540292 18429011 36858022 55287033 73716044 110574066 165861099 221148132 331722198 497583297 663444396 792447473 995166594 1584894946 1990333188 2377342419 3169789892 4754684838 7132027257 9509369676 14264054514 21396081771 21985810123 28528109028 42792163542 43971620246 65957430369 85584327084 87943240492 131914860738 197872291107 263829721476 395744582214 593616873321 791489164428 945389835289 1187233746642 1890779670578 2374467493284 2836169505867 3781559341156 5672339011734 8508508517601 11344678023468 17017017035202 25525525552803 34034034070404 51051051105606 102102102211212