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123331330 = 2531461863
BaseRepresentation
bin1110101100111…
…10001100000010
322121001212210001
413112132030002
5223033100310
620123230214
73025204363
oct726361402
9277055701
10123331330
1163687721
123537836a
131c722325
1412545b6a
15ac6293a
hex759e302

123331330 has 32 divisors (see below), whose sum is σ = 229920768. Its totient is φ = 47582400.

The previous prime is 123331301. The next prime is 123331333. The reversal of 123331330 is 33133321.

It is a junction number, because it is equal to n+sod(n) for n = 123331298 and 123331307.

It is not an unprimeable number, because it can be changed into a prime (123331333) 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 15 ways as a sum of consecutive naturals, for example, 142479 + ... + 143341.

It is an arithmetic number, because the mean of its divisors is an integer number (7185024).

Almost surely, 2123331330 is an apocalyptic number.

123331330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123331330 is a deficient number, since it is larger than the sum of its proper divisors (106589438).

123331330 is a wasteful number, since it uses less digits than its factorization.

123331330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362.

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

The square root of 123331330 is about 11105.4639704967. The cubic root of 123331330 is about 497.7651322824.

Adding to 123331330 its reverse (33133321), we get a palindrome (156464651).

The spelling of 123331330 in words is "one hundred twenty-three million, three hundred thirty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 461 863 922 1726 2305 4315 4610 8630 14291 26753 28582 53506 71455 133765 142910 267530 397843 795686 1989215 3978430 12333133 24666266 61665665 123331330