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34217971830 = 23357531133023
BaseRepresentation
bin11111110111100011…
…001101000001110110
310021022201011001222000
4133313203031001312
51030034300044310
623415225520130
72320644650550
oct376743150166
9107281131860
1034217971830
111356a175769
12676b643046
1332c41c4013
1419286dc4d0
15d540a84c0
hex7f78cd076

34217971830 has 256 divisors, whose sum is σ = 107226685440. Its totient is φ = 7603255296.

The previous prime is 34217971789. The next prime is 34217971847. The reversal of 34217971830 is 3817971243.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11317699 + ... + 11320721.

It is an arithmetic number, because the mean of its divisors is an integer number (418854240).

Almost surely, 234217971830 is an apocalyptic number.

34217971830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34217971830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53613342720).

34217971830 is an abundant number, since it is smaller than the sum of its proper divisors (73008713610).

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

34217971830 is a wasteful number, since it uses less digits than its factorization.

34217971830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212 (or 3206 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 34217971830 in words is "thirty-four billion, two hundred seventeen million, nine hundred seventy-one thousand, eight hundred thirty".