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8521488852 = 2237331331079
BaseRepresentation
bin1111110111110101…
…11001100111010100
3210222212200111010020
413323322321213110
5114423000120402
63525325025140
7421112313552
oct77372714724
923885614106
108521488852
113683181778
1217999b51b0
13a5a5b01c6
145aba54bd2
1534d1aa8bc
hex1fbeb99d4

8521488852 has 48 divisors (see below), whose sum is σ = 20220896640. Its totient is φ = 2792544768.

The previous prime is 8521488839. The next prime is 8521488883. The reversal of 8521488852 is 2588841258.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8521488795 and 8521488804.

It is a congruent number.

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, 258649 + ... + 289727.

It is an arithmetic number, because the mean of its divisors is an integer number (421268680).

Almost surely, 28521488852 is an apocalyptic number.

It is an amenable number.

8521488852 is an abundant number, since it is smaller than the sum of its proper divisors (11699407788).

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

8521488852 is a wasteful number, since it uses less digits than its factorization.

8521488852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31472 (or 31470 counting only the distinct ones).

The product of its digits is 1638400, while the sum is 51.

The square root of 8521488852 is about 92311.9106724587. The cubic root of 8521488852 is about 2042.5459092478.

The spelling of 8521488852 in words is "eight billion, five hundred twenty-one million, four hundred eighty-eight thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 73 146 219 292 313 438 626 876 939 1252 1878 3756 22849 31079 45698 62158 68547 91396 93237 124316 137094 186474 274188 372948 2268767 4537534 6806301 9075068 9727727 13612602 19455454 27225204 29183181 38910908 58366362 116732724 710124071 1420248142 2130372213 2840496284 4260744426 8521488852