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8201238980 = 2251137278359
BaseRepresentation
bin1111010001101010…
…01111100111000100
3210011120002002212212
413220311033213010
5113244004121410
63433445002552
7410143244504
oct75065174704
923146062785
108201238980
113529427260
12170a6b3458
13a0914233c
1457b2cda04
1532eeebb05
hex1e8d4f9c4

8201238980 has 24 divisors (see below), whose sum is σ = 18788293440. Its totient is φ = 2982268640.

The previous prime is 8201238973. The next prime is 8201239031. The reversal of 8201238980 is 898321028.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18638960 + ... + 18639399.

It is an arithmetic number, because the mean of its divisors is an integer number (782845560).

Almost surely, 28201238980 is an apocalyptic number.

It is an amenable number.

8201238980 is an abundant number, since it is smaller than the sum of its proper divisors (10587054460).

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

8201238980 is a wasteful number, since it uses less digits than its factorization.

8201238980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37278379 (or 37278377 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 8201238980 is about 90560.6922455874. The cubic root of 8201238980 is about 2016.6312327024.

The spelling of 8201238980 in words is "eight billion, two hundred one million, two hundred thirty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 37278359 74556718 149113436 186391795 372783590 410061949 745567180 820123898 1640247796 2050309745 4100619490 8201238980