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123066380 = 2256153319
BaseRepresentation
bin1110101010111…
…01100000001100
322120120102100002
413111131200030
5223001111010
620113423432
73023022053
oct725354014
9276512302
10123066380
1163516658
123526ab78
131c65b858
14124b739a
15ac0e1a5
hex755d80c

123066380 has 12 divisors (see below), whose sum is σ = 258439440. Its totient is φ = 49226544.

The previous prime is 123066367. The next prime is 123066397. The reversal of 123066380 is 83660321.

It is an unprimeable number.

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, 3076640 + ... + 3076679.

It is an arithmetic number, because the mean of its divisors is an integer number (21536620).

Almost surely, 2123066380 is an apocalyptic number.

123066380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123066380 is an abundant number, since it is smaller than the sum of its proper divisors (135373060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123066380 is a wasteful number, since it uses less digits than its factorization.

123066380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6153328 (or 6153326 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 123066380 is about 11093.5287442725. The cubic root of 123066380 is about 497.4084307450.

The spelling of 123066380 in words is "one hundred twenty-three million, sixty-six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 6153319 12306638 24613276 30766595 61533190 123066380