Search a number
-
+
123293645430 = 2354109788181
BaseRepresentation
bin111001011010011011…
…1111011101001110110
3102210020112202010122020
41302310313323221312
54010001133123210
6132350150414010
711623221460134
oct1626467735166
9383215663566
10123293645430
114831a05973a
121ba8a961306
13b81b6831a7
145d7894a754
153319200770
hex1cb4dfba76

123293645430 has 16 divisors (see below), whose sum is σ = 295904749104. Its totient is φ = 32878305440.

The previous prime is 123293645411. The next prime is 123293645507. The reversal of 123293645430 is 34546392321.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2054894061 + ... + 2054894120.

It is an arithmetic number, because the mean of its divisors is an integer number (18494046819).

Almost surely, 2123293645430 is an apocalyptic number.

123293645430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123293645430 is an abundant number, since it is smaller than the sum of its proper divisors (172611103674).

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

123293645430 is a wasteful number, since it uses less digits than its factorization.

123293645430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109788191.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 123293645430 in words is "one hundred twenty-three billion, two hundred ninety-three million, six hundred forty-five thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 4109788181 8219576362 12329364543 20548940905 24658729086 41097881810 61646822715 123293645430