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13424871780 = 223251731971459
BaseRepresentation
bin11001000000010111…
…10100100101100100
31021122121021010222100
430200023310211210
5204443231344110
610100045332100
7653452345605
oct144013644544
937577233870
1013424871780
115769a98961
122727b67030
13135c411018
14914d65dac
155388c9bc0
hex3202f4964

13424871780 has 288 divisors, whose sum is σ = 44998087680. Its totient is φ = 3224862720.

The previous prime is 13424871767. The next prime is 13424871799. The reversal of 13424871780 is 8717842431.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9200691 + ... + 9202149.

It is an arithmetic number, because the mean of its divisors is an integer number (156243360).

Almost surely, 213424871780 is an apocalyptic number.

13424871780 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 13424871780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22499043840).

13424871780 is an abundant number, since it is smaller than the sum of its proper divisors (31573215900).

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

13424871780 is a wasteful number, since it uses less digits than its factorization.

13424871780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 13424871780 in words is "thirteen billion, four hundred twenty-four million, eight hundred seventy-one thousand, seven hundred eighty".