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561678752 = 2578722303
BaseRepresentation
bin100001011110101…
…000100110100000
31110010220020101202
4201132220212200
52122242210002
6131422420332
716630122245
oct4136504640
91403806352
10561678752
11269064618
121381316a8
138c49c1bb
145484d5cc
153449d502
hex217a89a0

561678752 has 24 divisors (see below), whose sum is σ = 1107259776. Its totient is φ = 280469952.

The previous prime is 561678749. The next prime is 561678787. The reversal of 561678752 is 257876165.

It is a junction number, because it is equal to n+sod(n) for n = 561678697 and 561678706.

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, 14033 + ... + 36335.

It is an arithmetic number, because the mean of its divisors is an integer number (46135824).

Almost surely, 2561678752 is an apocalyptic number.

It is an amenable number.

561678752 is a deficient number, since it is larger than the sum of its proper divisors (545581024).

561678752 is a wasteful number, since it uses less digits than its factorization.

561678752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23100 (or 23092 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 561678752 is about 23699.7626992339. The cubic root of 561678752 is about 825.0798830515.

The spelling of 561678752 in words is "five hundred sixty-one million, six hundred seventy-eight thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 787 1574 3148 6296 12592 22303 25184 44606 89212 178424 356848 713696 17552461 35104922 70209844 140419688 280839376 561678752