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123350081 = 235363047
BaseRepresentation
bin1110101101000…
…10110001000001
322121002211111112
413112202301001
5223034200311
620123453105
73025313141
oct726426101
9277084445
10123350081
116369a818
1235387195
131c72aa1a
141254c921
15ac6828b
hex75a2c41

123350081 has 4 divisors (see below), whose sum is σ = 128713152. Its totient is φ = 117987012.

The previous prime is 123350069. The next prime is 123350083. The reversal of 123350081 is 180053321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123350081 is a prime.

It is a super-2 number, since 2×1233500812 = 30430484965413122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 5363047 = 123350081 / (1 + 2 + 3 + 3 + 5 + 0 + 0 + 8 + 1).

It is not an unprimeable number, because it can be changed into a prime (123350083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2681501 + ... + 2681546.

It is an arithmetic number, because the mean of its divisors is an integer number (32178288).

Almost surely, 2123350081 is an apocalyptic number.

It is an amenable number.

123350081 is a deficient number, since it is larger than the sum of its proper divisors (5363071).

123350081 is an equidigital number, since it uses as much as digits as its factorization.

123350081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363070.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 123350081 is about 11106.3081624814. The cubic root of 123350081 is about 497.7903573435.

The spelling of 123350081 in words is "one hundred twenty-three million, three hundred fifty thousand, eighty-one".

Divisors: 1 23 5363047 123350081