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13608702744 = 23371323211779
BaseRepresentation
bin11001010110010010…
…00101001100011000
31022010102011201122120
430223021011030120
5210332311441434
610130213421240
7661144031130
oct145311051430
938112151576
1013608702744
11585383787a
12277963a820
13138b526840
14931539ac0
15549add349
hex32b245318

13608702744 has 192 divisors, whose sum is σ = 43776364800. Its totient is φ = 3432768768.

The previous prime is 13608702733. The next prime is 13608702769. The reversal of 13608702744 is 44720780631.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 13608702696 and 13608702705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1149447 + ... + 1161225.

It is an arithmetic number, because the mean of its divisors is an integer number (228001900).

Almost surely, 213608702744 is an apocalyptic number.

13608702744 is a gapful number since it is divisible by the number (14) 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 13608702744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21888182400).

13608702744 is an abundant number, since it is smaller than the sum of its proper divisors (30167662056).

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

13608702744 is a wasteful number, since it uses less digits than its factorization.

13608702744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11854 (or 11827 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 13608702744 in words is "thirteen billion, six hundred eight million, seven hundred two thousand, seven hundred forty-four".