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52668780 = 22352773169
BaseRepresentation
bin1100100011101…
…0100101101100
310200002211222120
43020322211230
5101440400110
65120512540
71206451203
oct310724554
9120084876
1052668780
112780391a
121577b750
13abb1078
146dd023a
154955870
hex323a96c

52668780 has 48 divisors (see below), whose sum is σ = 148051680. Its totient is φ = 13989888.

The previous prime is 52668761. The next prime is 52668787. The reversal of 52668780 is 8786625.

52668780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52668787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15036 + ... + 18204.

It is an arithmetic number, because the mean of its divisors is an integer number (3084410).

Almost surely, 252668780 is an apocalyptic number.

It is an amenable number.

52668780 is an abundant number, since it is smaller than the sum of its proper divisors (95382900).

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

52668780 is a wasteful number, since it uses less digits than its factorization.

52668780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458 (or 3456 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 52668780 is about 7257.3259538207. The cubic root of 52668780 is about 374.8444510432.

The spelling of 52668780 in words is "fifty-two million, six hundred sixty-eight thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 277 554 831 1108 1385 1662 2770 3169 3324 4155 5540 6338 8310 9507 12676 15845 16620 19014 31690 38028 47535 63380 95070 190140 877813 1755626 2633439 3511252 4389065 5266878 8778130 10533756 13167195 17556260 26334390 52668780