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123101412 = 22371465493
BaseRepresentation
bin1110101011001…
…10000011100100
322120122012101120
413111212003210
5223003221122
620114253540
73023226150
oct725460344
9276565346
10123101412
116353aa05
12352872b0
131c671795
14124c6060
15ac1975c
hex75660e4

123101412 has 24 divisors (see below), whose sum is σ = 328270656. Its totient is φ = 35171808.

The previous prime is 123101411. The next prime is 123101417. The reversal of 123101412 is 214101321.

It is a junction number, because it is equal to n+sod(n) for n = 123101391 and 123101400.

It is not an unprimeable number, because it can be changed into a prime (123101411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732663 + ... + 732830.

It is an arithmetic number, because the mean of its divisors is an integer number (13677944).

Almost surely, 2123101412 is an apocalyptic number.

123101412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123101412 is an abundant number, since it is smaller than the sum of its proper divisors (205169244).

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

123101412 is a wasteful number, since it uses less digits than its factorization.

123101412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465507 (or 1465505 counting only the distinct ones).

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

The square root of 123101412 is about 11095.1075704564. The cubic root of 123101412 is about 497.4556235933.

Adding to 123101412 its reverse (214101321), we get a palindrome (337202733).

Subtracting 123101412 from its reverse (214101321), we obtain a palindrome (90999909).

The spelling of 123101412 in words is "one hundred twenty-three million, one hundred one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1465493 2930986 4396479 5861972 8792958 10258451 17585916 20516902 30775353 41033804 61550706 123101412