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52785705 = 3571926459
BaseRepresentation
bin1100100101011…
…1001000101001
310200022210101010
43021113020221
5102003120310
65123214133
71210446120
oct311271051
9120283333
1052785705
1127883755
1215817349
13ac2235b
147020ab7
15497a320
hex3257229

52785705 has 32 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 22859712.

The previous prime is 52785703. The next prime is 52785739. The reversal of 52785705 is 50758725.

It is not a de Polignac number, because 52785705 - 21 = 52785703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52785703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11235 + ... + 15224.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 252785705 is an apocalyptic number.

It is an amenable number.

52785705 is a deficient number, since it is larger than the sum of its proper divisors (48820695).

52785705 is a wasteful number, since it uses less digits than its factorization.

52785705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26493.

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 52785705 is about 7265.3771409336. The cubic root of 52785705 is about 375.1216316555.

The spelling of 52785705 in words is "fifty-two million, seven hundred eighty-five thousand, seven hundred five".

Divisors: 1 3 5 7 15 19 21 35 57 95 105 133 285 399 665 1995 26459 79377 132295 185213 396885 502721 555639 926065 1508163 2513605 2778195 3519047 7540815 10557141 17595235 52785705