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53007680 = 265112372
BaseRepresentation
bin1100101000110…
…1010101000000
310200202001212102
43022031111000
5102032221210
65132045532
71212362225
oct312152500
9120661772
1053007680
1127a15500
12159038a8
13ac9c3bb
14707b94c
1549c0ea5
hex328d540

53007680 has 126 divisors (see below), whose sum is σ = 142593822. Its totient is φ = 18754560.

The previous prime is 53007659. The next prime is 53007707. The reversal of 53007680 is 8670035.

It can be written as a sum of positive squares in 3 ways, for example, as 26050816 + 26956864 = 5104^2 + 5192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1432622 + ... + 1432658.

It is an arithmetic number, because the mean of its divisors is an integer number (1131697).

Almost surely, 253007680 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 53007680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71296911).

53007680 is an abundant number, since it is smaller than the sum of its proper divisors (89586142).

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

53007680 is a wasteful number, since it uses less digits than its factorization.

53007680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 53007680 is about 7280.6373347393. The cubic root of 53007680 is about 375.6467181147.

The spelling of 53007680 in words is "fifty-three million, seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 37 40 44 55 64 74 80 88 110 121 148 160 176 185 220 242 296 320 352 370 407 440 484 592 605 704 740 814 880 968 1184 1210 1369 1480 1628 1760 1936 2035 2368 2420 2738 2960 3256 3520 3872 4070 4477 4840 5476 5920 6512 6845 7744 8140 8954 9680 10952 11840 13024 13690 15059 16280 17908 19360 21904 22385 26048 27380 30118 32560 35816 38720 43808 44770 54760 60236 65120 71632 75295 87616 89540 109520 120472 130240 143264 150590 165649 179080 219040 240944 286528 301180 331298 358160 438080 481888 602360 662596 716320 828245 963776 1204720 1325192 1432640 1656490 2409440 2650384 3312980 4818880 5300768 6625960 10601536 13251920 26503840 53007680