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52255988 = 2237353081
BaseRepresentation
bin1100011101010…
…1110011110100
310122022212201222
43013111303310
5101334142423
65104005512
71203111551
oct307256364
9118285658
1052255988
1127551774
1215600898
13aa98205
146d23a28
1548c33c8
hex31d5cf4

52255988 has 12 divisors (see below), whose sum is σ = 93919812. Its totient is φ = 25421760.

The previous prime is 52255981. The next prime is 52255993. The reversal of 52255988 is 88955225.

It can be written as a sum of positive squares in 2 ways, for example, as 41113744 + 11142244 = 6412^2 + 3338^2 .

It is a super-2 number, since 2×522559882 = 5461376563712288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52255981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176393 + ... + 176688.

It is an arithmetic number, because the mean of its divisors is an integer number (7826651).

Almost surely, 252255988 is an apocalyptic number.

It is an amenable number.

52255988 is a deficient number, since it is larger than the sum of its proper divisors (41663824).

52255988 is a wasteful number, since it uses less digits than its factorization.

52255988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353122 (or 353120 counting only the distinct ones).

The product of its digits is 288000, while the sum is 44.

The square root of 52255988 is about 7228.8303341550. The cubic root of 52255988 is about 373.8625993032.

The spelling of 52255988 in words is "fifty-two million, two hundred fifty-five thousand, nine hundred eighty-eight".

Divisors: 1 2 4 37 74 148 353081 706162 1412324 13063997 26127994 52255988