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29870335320 = 23357237251547
BaseRepresentation
bin11011110100011010…
…010010010101011000
32212002201022020212120
4123310122102111120
5442133301212240
621420000541240
72105133442500
oct336432222530
985081266776
1029870335320
1111739031041
125957621820
132a80566137
141635134a00
15b9c564ad0
hex6f4692558

29870335320 has 384 divisors, whose sum is σ = 107681736960. Its totient is φ = 6604416000.

The previous prime is 29870335307. The next prime is 29870335321. The reversal of 29870335320 is 2353307892.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29870335321) 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 95 ways as a sum of consecutive naturals, for example, 54607287 + ... + 54607833.

It is an arithmetic number, because the mean of its divisors is an integer number (280421190).

Almost surely, 229870335320 is an apocalyptic number.

29870335320 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 29870335320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53840868480).

29870335320 is an abundant number, since it is smaller than the sum of its proper divisors (77811401640).

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

29870335320 is a wasteful number, since it uses less digits than its factorization.

29870335320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 29870335320 in words is "twenty-nine billion, eight hundred seventy million, three hundred thirty-five thousand, three hundred twenty".