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123441554401 = 1144325331737
BaseRepresentation
bin111001011110110110…
…0001010001111100001
3102210121212001200121021
41302331230022033201
54010302014220101
6132412552525441
711626665620464
oct1627554121741
9383555050537
10123441554401
11483955a2960
121bb103b0881
13b8431cc3a9
145d9044d2db
1533271ba5a1
hex1cbdb0a3e1

123441554401 has 8 divisors (see below), whose sum is σ = 134967500064. Its totient is φ = 111966273120.

The previous prime is 123441554371. The next prime is 123441554417. The reversal of 123441554401 is 104455144321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123441554401 - 27 = 123441554273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123441554441) 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, 12660996 + ... + 12670741.

It is an arithmetic number, because the mean of its divisors is an integer number (16870937508).

Almost surely, 2123441554401 is an apocalyptic number.

123441554401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123441554401 is a deficient number, since it is larger than the sum of its proper divisors (11525945663).

123441554401 is a wasteful number, since it uses less digits than its factorization.

123441554401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25332191.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 123441554401 its reverse (104455144321), we get a palindrome (227896698722).

The spelling of 123441554401 in words is "one hundred twenty-three billion, four hundred forty-one million, five hundred fifty-four thousand, four hundred one".

Divisors: 1 11 443 4873 25331737 278649107 11221959491 123441554401