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123020103 = 3476114303
BaseRepresentation
bin1110101010100…
…10001101000111
322120111001212010
413111102031013
5222443120403
620112425303
73022440123
oct725221507
9276431763
10123020103
1163494908
1235248233
131c64377b
14124a4583
15ac00603
hex7552347

123020103 has 16 divisors (see below), whose sum is σ = 170274816. Its totient is φ = 78947040.

The previous prime is 123020101. The next prime is 123020113. The reversal of 123020103 is 301020321.

It is a happy number.

It is not a de Polignac number, because 123020103 - 21 = 123020101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020101) 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, 1450 + ... + 15752.

It is an arithmetic number, because the mean of its divisors is an integer number (10642176).

Almost surely, 2123020103 is an apocalyptic number.

123020103 is a deficient number, since it is larger than the sum of its proper divisors (47254713).

123020103 is a wasteful number, since it uses less digits than its factorization.

123020103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14414.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 123020103 is about 11091.4427826140. The cubic root of 123020103 is about 497.3460756274.

Adding to 123020103 its reverse (301020321), we get a palindrome (424040424).

The spelling of 123020103 in words is "one hundred twenty-three million, twenty thousand, one hundred three".

Divisors: 1 3 47 61 141 183 2867 8601 14303 42909 672241 872483 2016723 2617449 41006701 123020103