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135440948160 = 26325741163861
BaseRepresentation
bin111111000100011101…
…0001101101111000000
3110221121010001001100100
41332020322031233000
54204340340320120
6142115401322400
712533232030660
oct1761072155700
9427533031310
10135440948160
1152492980001
12222baa96400
13ca061b0c9b
1467abd501a0
1537ca86b490
hex1f88e8dbc0

135440948160 has 336 divisors, whose sum is σ = 545400902592. Its totient is φ = 30202675200.

The previous prime is 135440948141. The next prime is 135440948161. The reversal of 135440948160 is 61849044531.

135440948160 is a `hidden beast` number, since 1 + 3 + 5 + 440 + 9 + 48 + 160 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135440948161) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 744630 + ... + 908490.

It is an arithmetic number, because the mean of its divisors is an integer number (1623216972).

Almost surely, 2135440948160 is an apocalyptic number.

135440948160 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 135440948160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272700451296).

135440948160 is an abundant number, since it is smaller than the sum of its proper divisors (409959954432).

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

135440948160 is a wasteful number, since it uses less digits than its factorization.

135440948160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163932 (or 163919 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 135440948160 in words is "one hundred thirty-five billion, four hundred forty million, nine hundred forty-eight thousand, one hundred sixty".