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12423113430 = 2357134550591
BaseRepresentation
bin10111001000111100…
…11010101011010110
31012001210021112212020
423210132122223112
5200420304112210
65412422234010
7616566502410
oct134436325326
935053245766
1012423113430
1152a5583aa2
1224a8585906
13122ca096c0
1485bcbb9b0
154ca99c770
hex2e479aad6

12423113430 has 64 divisors (see below), whose sum is σ = 36695973888. Its totient is φ = 2621139840.

The previous prime is 12423113419. The next prime is 12423113431. The reversal of 12423113430 is 3431132421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12423113430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423113431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2272566 + ... + 2278025.

It is an arithmetic number, because the mean of its divisors is an integer number (573374592).

Almost surely, 212423113430 is an apocalyptic number.

12423113430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12423113430 is an abundant number, since it is smaller than the sum of its proper divisors (24272860458).

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

12423113430 is a wasteful number, since it uses less digits than its factorization.

12423113430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550621.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12423113430 its reverse (3431132421), we get a palindrome (15854245851).

The spelling of 12423113430 in words is "twelve billion, four hundred twenty-three million, one hundred thirteen thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 4550591 9101182 13651773 22752955 27303546 31854137 45505910 59157683 63708274 68258865 95562411 118315366 136517730 159270685 177473049 191124822 295788415 318541370 354946098 414103781 477812055 591576830 828207562 887365245 955624110 1242311343 1774730490 2070518905 2484622686 4141037810 6211556715 12423113430