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102010312212 = 22312017078151
BaseRepresentation
bin101111100000001001…
…0011101011000010100
3100202022021101210011120
41133000102131120110
53132404114442322
6114510215003540
710240624230024
oct1370022353024
9322267353146
10102010312212
113a298186456
121792b0695b0
1398091577b3
144d1a041a84
1529c0987a5c
hex17c049d614

102010312212 has 24 divisors (see below), whose sum is σ = 238222283712. Its totient is φ = 33975120000.

The previous prime is 102010312207. The next prime is 102010312253. The reversal of 102010312212 is 212213010201.

It is a super-3 number, since 3×1020103122123 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 102010312191 and 102010312200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3524664 + ... + 3553487.

It is an arithmetic number, because the mean of its divisors is an integer number (9925928488).

Almost surely, 2102010312212 is an apocalyptic number.

102010312212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102010312212 is an abundant number, since it is smaller than the sum of its proper divisors (136211971500).

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

102010312212 is a wasteful number, since it uses less digits than its factorization.

102010312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7079359 (or 7079357 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102010312212 its reverse (212213010201), we get a palindrome (314223322413).

The spelling of 102010312212 in words is "one hundred two billion, ten million, three hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 1201 2402 3603 4804 7206 14412 7078151 14156302 21234453 28312604 42468906 84937812 8500859351 17001718702 25502578053 34003437404 51005156106 102010312212