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123133330 = 2512313333
BaseRepresentation
bin1110101011011…
…01110110010010
322120200211011201
413111231312102
5223010231310
620115101414
73023421205
oct725556622
9276624151
10123133330
1163561991
12352a186a
131c683178
14124d393c
15ac23e3a
hex756dd92

123133330 has 8 divisors (see below), whose sum is σ = 221640012. Its totient is φ = 49253328.

The previous prime is 123133313. The next prime is 123133331. The reversal of 123133330 is 33331321.

It can be written as a sum of positive squares in 2 ways, for example, as 114682681 + 8450649 = 10709^2 + 2907^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 123133298 and 123133307.

It is not an unprimeable number, because it can be changed into a prime (123133331) 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, 6156657 + ... + 6156676.

Almost surely, 2123133330 is an apocalyptic number.

123133330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123133330 is a deficient number, since it is larger than the sum of its proper divisors (98506682).

123133330 is a wasteful number, since it uses less digits than its factorization.

123133330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12313340.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 123133330 is about 11096.5458589599. The cubic root of 123133330 is about 497.4986136675.

Adding to 123133330 its reverse (33331321), we get a palindrome (156464651).

The spelling of 123133330 in words is "one hundred twenty-three million, one hundred thirty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 12313333 24626666 61566665 123133330