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123050930 = 2517723829
BaseRepresentation
bin1110101010110…
…01101110110010
322120112122010212
413111121232302
5223000112210
620113224122
73022626032
oct725315662
9276478125
10123050930
1163505a92
1235262042
131c654802
14124b18c2
15ac09805
hex7559bb2

123050930 has 16 divisors (see below), whose sum is σ = 234520920. Its totient is φ = 46324992.

The previous prime is 123050929. The next prime is 123050933. The reversal of 123050930 is 39050321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 113827561 + 9223369 = 10669^2 + 3037^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123050896 and 123050905.

It is not an unprimeable number, because it can be changed into a prime (123050933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361745 + ... + 362084.

Almost surely, 2123050930 is an apocalyptic number.

123050930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123050930 is a deficient number, since it is larger than the sum of its proper divisors (111469990).

123050930 is a wasteful number, since it uses less digits than its factorization.

123050930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723853.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 123050930 is about 11092.8323704994. The cubic root of 123050930 is about 497.3876146568.

The spelling of 123050930 in words is "one hundred twenty-three million, fifty thousand, nine hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 723829 1447658 3619145 7238290 12305093 24610186 61525465 123050930