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8275506820 = 2257357116553
BaseRepresentation
bin1111011010100001…
…00011011010000100
3210100201211022012121
413231100203122010
5113422012204240
63445100455324
7412034435020
oct75520433204
923321738177
108275506820
113567342839
12172b54a544
13a1b6465c9
14587103380
153367bc04a
hex1ed423684

8275506820 has 48 divisors (see below), whose sum is σ = 19867978368. Its totient is φ = 2836350720.

The previous prime is 8275506803. The next prime is 8275506937. The reversal of 8275506820 is 286055728.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491664 + ... + 508216.

It is an arithmetic number, because the mean of its divisors is an integer number (413916216).

Almost surely, 28275506820 is an apocalyptic number.

It is an amenable number.

8275506820 is an abundant number, since it is smaller than the sum of its proper divisors (11592471548).

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

8275506820 is a wasteful number, since it uses less digits than its factorization.

8275506820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20140 (or 20138 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 8275506820 is about 90969.8126853079. The cubic root of 8275506820 is about 2022.7002756177.

The spelling of 8275506820 in words is "eight billion, two hundred seventy-five million, five hundred six thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 3571 7142 14284 16553 17855 24997 33106 35710 49994 66212 71420 82765 99988 115871 124985 165530 231742 249970 331060 463484 499940 579355 1158710 2317420 59110763 118221526 236443052 295553815 413775341 591107630 827550682 1182215260 1655101364 2068876705 4137753410 8275506820