Search a number
-
+
40680960 = 29355297
BaseRepresentation
bin1001101100101…
…1111000000000
32211112210210020
42123023320000
540403242320
64011533440
71002532245
oct233137000
984483706
1040680960
1120a66231
121175a280
138574798
14558d5cc
153888940
hex26cbe00

40680960 has 80 divisors (see below), whose sum is σ = 130076496. Its totient is φ = 10846208.

The previous prime is 40680953. The next prime is 40681001. The reversal of 40680960 is 6908604.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5032 + ... + 10328.

Almost surely, 240680960 is an apocalyptic number.

40680960 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 40680960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65038248).

40680960 is an abundant number, since it is smaller than the sum of its proper divisors (89395536).

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

40680960 is an equidigital number, since it uses as much as digits as its factorization.

40680960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323 (or 5307 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 40680960 is about 6378.1627448663. The cubic root of 40680960 is about 343.9249881512.

The spelling of 40680960 in words is "forty million, six hundred eighty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1280 1536 1920 2560 3840 5297 7680 10594 15891 21188 26485 31782 42376 52970 63564 79455 84752 105940 127128 158910 169504 211880 254256 317820 339008 423760 508512 635640 678016 847520 1017024 1271280 1356032 1695040 2034048 2542560 2712064 3390080 4068096 5085120 6780160 8136192 10170240 13560320 20340480 40680960