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8513212232 = 237152021647
BaseRepresentation
bin1111110110110110…
…10100111101001000
3210222022002222201202
413323123110331020
5114413340242412
63524431403332
7420652052510
oct77333247510
923868088652
108513212232
113679539398
121797083548
13a58972bb5
145aa8dc840
1534c5c33c2
hex1fb6d4f48

8513212232 has 16 divisors (see below), whose sum is σ = 18242597760. Its totient is φ = 3648519504.

The previous prime is 8513212207. The next prime is 8513212261. The reversal of 8513212232 is 2322123158.

It is a junction number, because it is equal to n+sod(n) for n = 8513212195 and 8513212204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76010768 + ... + 76010879.

It is an arithmetic number, because the mean of its divisors is an integer number (1140162360).

Almost surely, 28513212232 is an apocalyptic number.

It is an amenable number.

8513212232 is an abundant number, since it is smaller than the sum of its proper divisors (9729385528).

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

8513212232 is a wasteful number, since it uses less digits than its factorization.

8513212232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152021660 (or 152021656 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 8513212232 is about 92267.0701388095. The cubic root of 8513212232 is about 2041.8844108966.

The spelling of 8513212232 in words is "eight billion, five hundred thirteen million, two hundred twelve thousand, two hundred thirty-two".