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29189356320 = 25351741432029
BaseRepresentation
bin11011001011110100…
…100011101100100000
32210100020220221022010
4123023310203230200
5434234433400240
621224233112520
72052224302125
oct331364435440
983306827263
1029189356320
11114196a3483
1257a7558740
1329a2456697
1415ac90c74c
15b5c89d280
hex6cbd23b20

29189356320 has 384 divisors, whose sum is σ = 102099191040. Its totient is φ = 6977617920.

The previous prime is 29189356249. The next prime is 29189356321. The reversal of 29189356320 is 2365398192.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 29189356320.

It is not an unprimeable number, because it can be changed into a prime (29189356321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14385066 + ... + 14387094.

It is an arithmetic number, because the mean of its divisors is an integer number (265883310).

Almost surely, 229189356320 is an apocalyptic number.

29189356320 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 29189356320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51049595520).

29189356320 is an abundant number, since it is smaller than the sum of its proper divisors (72909834720).

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

29189356320 is a wasteful number, since it uses less digits than its factorization.

29189356320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 29189356320 in words is "twenty-nine billion, one hundred eighty-nine million, three hundred fifty-six thousand, three hundred twenty".