Search a number
-
+
123430253200000 = 2755476565439
BaseRepresentation
bin11100000100001001011000…
…011001011000001010000000
3121012000211001120100110212021
4130010021120121120022000
5112134240124304400000
61114303024151411224
734666353511251445
oct3404113031301200
9535024046313767
10123430253200000
113636852712520a
1211a1573a083b14
1353b4566253086
14226a0b00439cc
15e40a8673411a
hex704258658280

123430253200000 has 192 divisors, whose sum is σ = 313890009753600. Its totient is φ = 48321623680000.

The previous prime is 123430253199989. The next prime is 123430253200019. The reversal of 123430253200000 is 2352034321.

It is a super-2 number, since 2×1234302532000002 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15517281 + ... + 22082719.

It is an arithmetic number, because the mean of its divisors is an integer number (1634843800800).

Almost surely, 2123430253200000 is an apocalyptic number.

123430253200000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123430253200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156945004876800).

123430253200000 is an abundant number, since it is smaller than the sum of its proper divisors (190459756553600).

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

123430253200000 is an frugal number, since it uses more digits than its factorization.

123430253200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6565525 (or 6565493 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The spelling of 123430253200000 in words is "one hundred twenty-three trillion, four hundred thirty billion, two hundred fifty-three million, two hundred thousand".