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12430523020 = 225913768023
BaseRepresentation
bin10111001001110101…
…01011101010001100
31012002022012222220111
423210322223222030
5200424203214040
65413245125404
7620016462616
oct134472535214
935068188814
1012430523020
1152a9784a23
1224aab59864
131231402186
1485cc89db6
154cb462dea
hex2e4eaba8c

12430523020 has 24 divisors (see below), whose sum is σ = 26107339104. Its totient is φ = 4971591936.

The previous prime is 12430523009. The next prime is 12430523023. The reversal of 12430523020 is 2032503421.

It is a junction number, because it is equal to n+sod(n) for n = 12430522982 and 12430523000.

It is not an unprimeable number, because it can be changed into a prime (12430523023) 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, 148729 + ... + 216751.

It is an arithmetic number, because the mean of its divisors is an integer number (1087805796).

Almost surely, 212430523020 is an apocalyptic number.

12430523020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12430523020 is an abundant number, since it is smaller than the sum of its proper divisors (13676816084).

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

12430523020 is a wasteful number, since it uses less digits than its factorization.

12430523020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77169 (or 77167 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The spelling of 12430523020 in words is "twelve billion, four hundred thirty million, five hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 9137 18274 36548 45685 68023 91370 136046 182740 272092 340115 680230 1360460 621526151 1243052302 2486104604 3107630755 6215261510 12430523020