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205070679616 = 261119731032039
BaseRepresentation
bin1011111011111100101…
…0100011111001000000
3201121022201122220021011
42332333022203321000
511324441043221431
6234112544210304
720546562005335
oct2767712437100
9647281586234
10205070679616
1179a74063910
12338b1909994
13164519c6a0a
149cd570098c
1555036dccb1
hex2fbf2a3e40

205070679616 has 224 divisors, whose sum is σ = 478531123200. Its totient is φ = 86210334720.

The previous prime is 205070679599. The next prime is 205070679617. The reversal of 205070679616 is 616976070502.

It is a self number, because there is not a number n which added to its sum of digits gives 205070679616.

It is not an unprimeable number, because it can be changed into a prime (205070679617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100573125 + ... + 100575163.

Almost surely, 2205070679616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205070679616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239265561600).

205070679616 is an abundant number, since it is smaller than the sum of its proper divisors (273460443584).

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

205070679616 is a wasteful number, since it uses less digits than its factorization.

205070679616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2247 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 205070679616 in words is "two hundred five billion, seventy million, six hundred seventy-nine thousand, six hundred sixteen".