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1230112242440 = 23530752806061
BaseRepresentation
bin10001111001101000011…
…001110011101100001000
311100121010122012112000222
4101321220121303230020
5130123232213224230
62341034502245212
7154605220353224
oct21715031635410
94317118175028
101230112242440
11434762323574
1217a4a2126808
138bccacbba43
144377582d784
1521ee85d66e5
hex11e68673b08

1230112242440 has 16 divisors (see below), whose sum is σ = 2767752545580. Its totient is φ = 492044896960.

The previous prime is 1230112242421. The next prime is 1230112242467. The reversal of 1230112242440 is 442422110321.

It can be written as a sum of positive squares in 2 ways, for example, as 1204019009284 + 26093233156 = 1097278^2 + 161534^2 .

It is a super-2 number, since 2×12301122424402 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15376402991 + ... + 15376403070.

Almost surely, 21230112242440 is an apocalyptic number.

1230112242440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230112242440 is an abundant number, since it is smaller than the sum of its proper divisors (1537640303140).

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

1230112242440 is a wasteful number, since it uses less digits than its factorization.

1230112242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30752806072 (or 30752806068 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1230112242440 its reverse (442422110321), we get a palindrome (1672534352761).

The spelling of 1230112242440 in words is "one trillion, two hundred thirty billion, one hundred twelve million, two hundred forty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 30752806061 61505612122 123011224244 153764030305 246022448488 307528060610 615056121220 1230112242440