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90208827129 = 343283694721
BaseRepresentation
bin101010000000011011…
…1010111011011111001
322121211210211020002110
41110000313113123321
52434221424432004
6105235200122533
76342313244001
oct1240067273371
9277753736073
1090208827129
1135291592aa3
1215596906449
13867817a325
14451a93b001
15252e87b589
hex1500dd76f9

90208827129 has 8 divisors (see below), whose sum is σ = 120281388192. Its totient is φ = 60137742080.

The previous prime is 90208827067. The next prime is 90208827167. The reversal of 90208827129 is 92172880209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90208827129 - 219 = 90208302841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90208827199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217512 + ... + 477209.

It is an arithmetic number, because the mean of its divisors is an integer number (15035173524).

Almost surely, 290208827129 is an apocalyptic number.

It is an amenable number.

90208827129 is a deficient number, since it is larger than the sum of its proper divisors (30072561063).

90208827129 is a wasteful number, since it uses less digits than its factorization.

90208827129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738007.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 90208827129 in words is "ninety billion, two hundred eight million, eight hundred twenty-seven thousand, one hundred twenty-nine".

Divisors: 1 3 43283 129849 694721 2084163 30069609043 90208827129