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100211011212 = 223131933809383
BaseRepresentation
bin101110101010100001…
…0101010111010001100
3100120122212200211012210
41131111002222322030
53120213004324322
6114011501430420
710145215353354
oct1352502527214
9316585624183
10100211011212
1139554559a34
121750856b410
1395b0450950
144bc90abb64
152917a1b70c
hex17550aae8c

100211011212 has 48 divisors (see below), whose sum is σ = 265065570560. Its totient is φ = 29211306048.

The previous prime is 100211011177. The next prime is 100211011289. The reversal of 100211011212 is 212110112001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16901728 + ... + 16907655.

Almost surely, 2100211011212 is an apocalyptic number.

100211011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100211011212 is an abundant number, since it is smaller than the sum of its proper divisors (164854559348).

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

100211011212 is a wasteful number, since it uses less digits than its factorization.

100211011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33809422 (or 33809420 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100211011212 its reverse (212110112001), we get a palindrome (312321123213).

The spelling of 100211011212 in words is "one hundred billion, two hundred eleven million, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 19 26 38 39 52 57 76 78 114 156 228 247 494 741 988 1482 2964 33809383 67618766 101428149 135237532 202856298 405712596 439521979 642378277 879043958 1284756554 1318565937 1758087916 1927134831 2569513108 2637131874 3854269662 5274263748 7708539324 8350917601 16701835202 25052752803 33403670404 50105505606 100211011212