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123130302 = 2337554641
BaseRepresentation
bin1110101011011…
…01000110111110
322120200200000120
413111231012332
5223010132202
620115035410
73023406321
oct725550676
9276620016
10123130302
116355a689
123529bb66
131c681989
14124d27b8
15ac230bc
hex756d1be

123130302 has 16 divisors (see below), whose sum is σ = 252916752. Its totient is φ = 39934080.

The previous prime is 123130243. The next prime is 123130327. The reversal of 123130302 is 203031321.

It is a super-2 number, since 2×1231303022 = 30322142541222408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277099 + ... + 277542.

It is an arithmetic number, because the mean of its divisors is an integer number (15807297).

Almost surely, 2123130302 is an apocalyptic number.

123130302 is an abundant number, since it is smaller than the sum of its proper divisors (129786450).

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

123130302 is a wasteful number, since it uses less digits than its factorization.

123130302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554683.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 123130302 is about 11096.4094192671. The cubic root of 123130302 is about 497.4945355999.

Adding to 123130302 its reverse (203031321), we get a palindrome (326161623).

The spelling of 123130302 in words is "one hundred twenty-three million, one hundred thirty thousand, three hundred two".

Divisors: 1 2 3 6 37 74 111 222 554641 1109282 1663923 3327846 20521717 41043434 61565151 123130302