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52231648 = 257233311
BaseRepresentation
bin1100011100111…
…1110111100000
310122021122100111
43013033313200
5101332403043
65103301104
71202650600
oct307176740
9118248314
1052231648
1127535457
12155aa794
13aa8a101
146d18c00
1548bb09d
hex31cfde0

52231648 has 36 divisors (see below), whose sum is σ = 119623392. Its totient is φ = 22384320.

The previous prime is 52231631. The next prime is 52231649. The reversal of 52231648 is 84613225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52231649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15088 + ... + 18223.

It is an arithmetic number, because the mean of its divisors is an integer number (3322872).

Almost surely, 252231648 is an apocalyptic number.

It is an amenable number.

52231648 is an abundant number, since it is smaller than the sum of its proper divisors (67391744).

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

52231648 is a wasteful number, since it uses less digits than its factorization.

52231648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33335 (or 33320 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 52231648 is about 7227.1466015295. The cubic root of 52231648 is about 373.8045438903.

The spelling of 52231648 in words is "fifty-two million, two hundred thirty-one thousand, six hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 196 224 392 784 1568 33311 66622 133244 233177 266488 466354 532976 932708 1065952 1632239 1865416 3264478 3730832 6528956 7461664 13057912 26115824 52231648