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52928530081 = 737614098191
BaseRepresentation
bin110001010010110010…
…010100011010100001
312001121200100220122221
4301102302110122201
51331344200430311
640152014031041
73552422040220
oct612262243241
9161550326587
1052928530081
11204a0859049
12a3117a8481
134cb66bc66b
1427c1650cb7
15159ba1c671
hexc52c946a1

52928530081 has 32 divisors (see below), whose sum is σ = 63305154560. Its totient is φ = 43306099200.

The previous prime is 52928530073. The next prime is 52928530091. The reversal of 52928530081 is 18003582925.

It is not a de Polignac number, because 52928530081 - 23 = 52928530073 is a prime.

It is a super-2 number, since 2×529285300812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52928530001) 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, 6457696 + ... + 6465886.

It is an arithmetic number, because the mean of its divisors is an integer number (1978286080).

Almost surely, 252928530081 is an apocalyptic number.

It is an amenable number.

52928530081 is a deficient number, since it is larger than the sum of its proper divisors (10376624479).

52928530081 is a wasteful number, since it uses less digits than its factorization.

52928530081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8705.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 52928530081 in words is "fifty-two billion, nine hundred twenty-eight million, five hundred thirty thousand, eighty-one".

Divisors: 1 7 37 61 259 409 427 2257 2863 8191 15133 15799 24949 57337 105931 174643 303067 499651 923113 2121469 3350119 3497557 6461791 18487087 23450833 123954403 129409609 204357259 867680821 1430500813 7561218583 52928530081