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102300001212 = 2238525000101
BaseRepresentation
bin101111101000110001…
…1100010001110111100
3100210001110111111202210
41133101203202032330
53134002300014322
6114555044020420
710251042443253
oct1372143421674
9323043444683
10102300001212
113a426758052
12179b0091710
1398541852c6
144d466cd79a
1529db10b70c
hex17d18e23bc

102300001212 has 12 divisors (see below), whose sum is σ = 238700002856. Its totient is φ = 34100000400.

The previous prime is 102300001211. The next prime is 102300001231. The reversal of 102300001212 is 212100003201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8525000101 = 102300001212 / (1 + 0 + 2 + 3 + 0 + 0 + 0 + 0 + 1 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102300001211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4262500039 + ... + 4262500062.

Almost surely, 2102300001212 is an apocalyptic number.

102300001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102300001212 is an abundant number, since it is smaller than the sum of its proper divisors (136400001644).

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

102300001212 is a wasteful number, since it uses less digits than its factorization.

102300001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8525000108 (or 8525000106 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 102300001212 its reverse (212100003201), we get a palindrome (314400004413).

The spelling of 102300001212 in words is "one hundred two billion, three hundred million, one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 8525000101 17050000202 25575000303 34100000404 51150000606 102300001212