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40965760 = 275112232
BaseRepresentation
bin1001110001000…
…1011010000000
32212002021110101
42130101122000
540441401020
64022012144
71005126463
oct234213200
985067411
1040965760
1121140200
1211877054
1386442c4
1456252da
1538e300a
hex2711680

40965760 has 144 divisors (see below), whose sum is σ = 112529970. Its totient is φ = 14248960.

The previous prime is 40965751. The next prime is 40965763. The reversal of 40965760 is 6756904.

It can be written as a sum of positive squares in only one way, i.e., 36869184 + 4096576 = 6072^2 + 2024^2 .

It is not an unprimeable number, because it can be changed into a prime (40965763) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1781109 + ... + 1781131.

Almost surely, 240965760 is an apocalyptic number.

40965760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40965760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56264985).

40965760 is an abundant number, since it is smaller than the sum of its proper divisors (71564210).

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

40965760 is a wasteful number, since it uses less digits than its factorization.

40965760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 40965760 is about 6400.4499841808. The cubic root of 40965760 is about 344.7257079079.

Subtracting from 40965760 its reverse (6756904), we obtain a triangular number (34208856 = T8271).

The spelling of 40965760 in words is "forty million, nine hundred sixty-five thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 23 32 40 44 46 55 64 80 88 92 110 115 121 128 160 176 184 220 230 242 253 320 352 368 440 460 484 506 529 605 640 704 736 880 920 968 1012 1058 1210 1265 1408 1472 1760 1840 1936 2024 2116 2420 2530 2645 2783 2944 3520 3680 3872 4048 4232 4840 5060 5290 5566 5819 7040 7360 7744 8096 8464 9680 10120 10580 11132 11638 13915 14720 15488 16192 16928 19360 20240 21160 22264 23276 27830 29095 32384 33856 38720 40480 42320 44528 46552 55660 58190 64009 67712 77440 80960 84640 89056 93104 111320 116380 128018 161920 169280 178112 186208 222640 232760 256036 320045 338560 356224 372416 445280 465520 512072 640090 744832 890560 931040 1024144 1280180 1781120 1862080 2048288 2560360 3724160 4096576 5120720 8193152 10241440 20482880 40965760