Search a number
-
+
29060640 = 253357312
BaseRepresentation
bin110111011011…
…0111000100000
32000200102201000
41232312320200
524414420030
62514512000
7502003620
oct156667040
960612630
1029060640
1115449764
129895600
13603655b
143c06880
152840860
hex1bb6e20

29060640 has 288 divisors, whose sum is σ = 120113280. Its totient is φ = 6428160.

The previous prime is 29060623. The next prime is 29060641. The reversal of 29060640 is 4606092.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29060641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 937425 + ... + 937455.

It is an arithmetic number, because the mean of its divisors is an integer number (417060).

Almost surely, 229060640 is an apocalyptic number.

29060640 is a gapful number since it is divisible by the number (20) 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 29060640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60056640).

29060640 is an abundant number, since it is smaller than the sum of its proper divisors (91052640).

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

29060640 is a wasteful number, since it uses less digits than its factorization.

29060640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 29060640 is about 5390.7921495825. The cubic root of 29060640 is about 307.4456774950.

The spelling of 29060640 in words is "twenty-nine million, sixty thousand, six hundred forty".