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103000123212 = 22377915521417
BaseRepresentation
bin101111111101101001…
…0010010011101001100
3100211212020220101121020
41133323102102131030
53141421012420322
6115152334034140
710304303413260
oct1377322223514
9324766811536
10103000123212
113a755980078
1217b66648950
13993623808c
144db169a0a0
152a2c80505c
hex17fb49274c

103000123212 has 48 divisors (see below), whose sum is σ = 278143810560. Its totient is φ = 29056090752.

The previous prime is 103000123153. The next prime is 103000123217. The reversal of 103000123212 is 212321000301.

103000123212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 103000123191 and 103000123200.

It is not an unprimeable number, because it can be changed into a prime (103000123217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7754073 + ... + 7767344.

It is an arithmetic number, because the mean of its divisors is an integer number (5794662720).

Almost surely, 2103000123212 is an apocalyptic number.

103000123212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103000123212 is an abundant number, since it is smaller than the sum of its proper divisors (175143687348).

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

103000123212 is a wasteful number, since it uses less digits than its factorization.

103000123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15521510 (or 15521508 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 103000123212 its reverse (212321000301), we get a palindrome (315321123513).

The spelling of 103000123212 in words is "one hundred three billion, one hundred twenty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 79 84 158 237 316 474 553 948 1106 1659 2212 3318 6636 15521417 31042834 46564251 62085668 93128502 108649919 186257004 217299838 325949757 434599676 651899514 1226191943 1303799028 2452383886 3678575829 4904767772 7357151658 8583343601 14714303316 17166687202 25750030803 34333374404 51500061606 103000123212