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52889772 = 223131971721
BaseRepresentation
bin1100100111000…
…0100010101100
310200112002010110
43021300202230
5102014433042
65125340020
71211361405
oct311604254
9120462113
1052889772
1127944961
1215867610
13ac5a830
14704a9ac
15499b09c
hex32708ac

52889772 has 48 divisors (see below), whose sum is σ = 133654752. Its totient is φ = 16181760.

The previous prime is 52889747. The next prime is 52889773. The reversal of 52889772 is 27798825.

It is not an unprimeable number, because it can be changed into a prime (52889773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29872 + ... + 31592.

It is an arithmetic number, because the mean of its divisors is an integer number (2784474).

Almost surely, 252889772 is an apocalyptic number.

52889772 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52889772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66827376).

52889772 is an abundant number, since it is smaller than the sum of its proper divisors (80764980).

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

52889772 is a wasteful number, since it uses less digits than its factorization.

52889772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938 (or 1936 counting only the distinct ones).

The product of its digits is 564480, while the sum is 48.

The square root of 52889772 is about 7272.5354588341. The cubic root of 52889772 is about 375.3679872207.

The spelling of 52889772 in words is "fifty-two million, eight hundred eighty-nine thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 197 394 591 788 1182 1721 2364 2561 3442 5122 5163 6884 7683 10244 10326 15366 20652 22373 30732 44746 67119 89492 134238 268476 339037 678074 1017111 1356148 2034222 4068444 4407481 8814962 13222443 17629924 26444886 52889772