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123013010 = 2512301301
BaseRepresentation
bin1110101010100…
…00011110010010
322120110201010102
413111100132102
5222442404020
620112332402
73022410341
oct725203622
9276421112
10123013010
116348a54a
1235244102
131c640483
14124a1b58
15abed475
hex7550792

123013010 has 8 divisors (see below), whose sum is σ = 221423436. Its totient is φ = 49205200.

The previous prime is 123013001. The next prime is 123013013. The reversal of 123013010 is 10310321.

It can be written as a sum of positive squares in 2 ways, for example, as 122965921 + 47089 = 11089^2 + 217^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123012982 and 123013000.

It is not an unprimeable number, because it can be changed into a prime (123013013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6150641 + ... + 6150660.

Almost surely, 2123013010 is an apocalyptic number.

123013010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123013010 is a deficient number, since it is larger than the sum of its proper divisors (98410426).

123013010 is a wasteful number, since it uses less digits than its factorization.

123013010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12301308.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 123013010 is about 11091.1230269978. The cubic root of 123013010 is about 497.3365169092.

Adding to 123013010 its reverse (10310321), we get a palindrome (133323331).

The spelling of 123013010 in words is "one hundred twenty-three million, thirteen thousand, ten".

Divisors: 1 2 5 10 12301301 24602602 61506505 123013010