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53012680 = 2357593209
BaseRepresentation
bin1100101000111…
…0100011001000
310200202022201121
43022032203020
5102032401210
65132125024
71212412630
oct312164310
9120668647
1053012680
1127a19236
1215906774
13aca1766
14707d6c0
1549c26da
hex328e8c8

53012680 has 64 divisors (see below), whose sum is σ = 138672000. Its totient is φ = 17862144.

The previous prime is 53012669. The next prime is 53012683. The reversal of 53012680 is 8621035.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53012683) 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, 14916 + ... + 18124.

It is an arithmetic number, because the mean of its divisors is an integer number (2166750).

Almost surely, 253012680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53012680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69336000).

53012680 is an abundant number, since it is smaller than the sum of its proper divisors (85659320).

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

53012680 is a wasteful number, since it uses less digits than its factorization.

53012680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286 (or 3282 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 53012680 is about 7280.9807031745. The cubic root of 53012680 is about 375.6585288218.

The spelling of 53012680 in words is "fifty-three million, twelve thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 59 70 118 140 236 280 295 413 472 590 826 1180 1652 2065 2360 3209 3304 4130 6418 8260 12836 16045 16520 22463 25672 32090 44926 64180 89852 112315 128360 179704 189331 224630 378662 449260 757324 898520 946655 1325317 1514648 1893310 2650634 3786620 5301268 6626585 7573240 10602536 13253170 26506340 53012680