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123297130 = 25111120883
BaseRepresentation
bin1110101100101…
…01110101101010
322121000010212101
413112111311222
5223031002010
620122404014
73025002565
oct726256552
9277003771
10123297130
1163663a60
123536060a
131c70c8a8
14125374dc
15ac5773a
hex7595d6a

123297130 has 16 divisors (see below), whose sum is σ = 242110944. Its totient is φ = 44835280.

The previous prime is 123297113. The next prime is 123297131. The reversal of 123297130 is 31792321.

It is not an unprimeable number, because it can be changed into a prime (123297131) 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, 560332 + ... + 560551.

It is an arithmetic number, because the mean of its divisors is an integer number (15131934).

Almost surely, 2123297130 is an apocalyptic number.

123297130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123297130 is a deficient number, since it is larger than the sum of its proper divisors (118813814).

123297130 is a wasteful number, since it uses less digits than its factorization.

123297130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120901.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 123297130 is about 11103.9240811526. The cubic root of 123297130 is about 497.7191176395.

The spelling of 123297130 in words is "one hundred twenty-three million, two hundred ninety-seven thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 1120883 2241766 5604415 11208830 12329713 24659426 61648565 123297130