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123130303 = 1747915121
BaseRepresentation
bin1110101011011…
…01000110111111
322120200200000121
413111231012333
5223010132203
620115035411
73023406322
oct725550677
9276620017
10123130303
116355a68a
123529bb67
131c68198a
14124d27b9
15ac230bd
hex756d1bf

123130303 has 8 divisors (see below), whose sum is σ = 130654080. Its totient is φ = 115637760.

The previous prime is 123130243. The next prime is 123130327. The reversal of 123130303 is 303031321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123130303 - 217 = 122999231 is a prime.

It is a super-2 number, since 2×1231303032 = 30322143033743618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123130373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583 + ... + 15703.

It is an arithmetic number, because the mean of its divisors is an integer number (16331760).

Almost surely, 2123130303 is an apocalyptic number.

123130303 is a deficient number, since it is larger than the sum of its proper divisors (7523777).

123130303 is a wasteful number, since it uses less digits than its factorization.

123130303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15617.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 123130303 is about 11096.4094643267. The cubic root of 123130303 is about 497.4945369467.

Adding to 123130303 its reverse (303031321), we get a palindrome (426161624).

The spelling of 123130303 in words is "one hundred twenty-three million, one hundred thirty thousand, three hundred three".

Divisors: 1 17 479 8143 15121 257057 7242959 123130303