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205028052757 = 11210316450939
BaseRepresentation
bin1011111011110010011…
…1111100111100010101
3201121012202110020012121
42332330213330330111
511324344140142012
6234104422415541
720545533456643
oct2767447747425
9647182406177
10205028052757
1179a51a99700
123389b5915b1
1316445c20618
149ccdba6193
1554eeabca07
hex2fbc9fcf15

205028052757 has 12 divisors (see below), whose sum is σ = 227549402080. Its totient is φ = 184579524360.

The previous prime is 205028052739. The next prime is 205028052833. The reversal of 205028052757 is 757250820502.

It is not a de Polignac number, because 205028052757 - 235 = 170668314389 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205028052457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8213007 + ... + 8237932.

Almost surely, 2205028052757 is an apocalyptic number.

It is an amenable number.

205028052757 is a deficient number, since it is larger than the sum of its proper divisors (22521349323).

205028052757 is a wasteful number, since it uses less digits than its factorization.

205028052757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16451064 (or 16451053 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 43.

The spelling of 205028052757 in words is "two hundred five billion, twenty-eight million, fifty-two thousand, seven hundred fifty-seven".

Divisors: 1 11 103 121 1133 12463 16450939 180960329 1694446717 1990563619 18638913887 205028052757