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103000121 = 719799803
BaseRepresentation
bin1100010001110…
…10100000111001
321011210221121022
412020322200321
5202332000441
614115352225
72360325620
oct610724071
9234727538
10103000121
1153160574
122a5b2675
1318454223
14d9726b7
15909884b
hex623a839

103000121 has 16 divisors (see below), whose sum is σ = 125491200. Its totient is φ = 82572048.

The previous prime is 103000111. The next prime is 103000181. The reversal of 103000121 is 121000301.

It is a cyclic number.

It is not a de Polignac number, because 103000121 - 26 = 103000057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103000099 and 103000108.

It is not an unprimeable number, because it can be changed into a prime (103000111) 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, 5606 + ... + 15408.

It is an arithmetic number, because the mean of its divisors is an integer number (7843200).

Almost surely, 2103000121 is an apocalyptic number.

It is an amenable number.

103000121 is a deficient number, since it is larger than the sum of its proper divisors (22491079).

103000121 is an equidigital number, since it uses as much as digits as its factorization.

103000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9908.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 103000121 is about 10148.8975263326. The cubic root of 103000121 is about 468.7549983230.

Adding to 103000121 its reverse (121000301), we get a palindrome (224000422).

The spelling of 103000121 in words is "one hundred three million, one hundred twenty-one", and thus it is an aban number.

Divisors: 1 7 19 79 133 553 1501 9803 10507 68621 186257 774437 1303799 5421059 14714303 103000121