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40102160 = 2457193769
BaseRepresentation
bin1001100011111…
…0100100010000
32210110101211012
42120332210100
540231232120
63551310052
7664601630
oct230764420
983411735
1040102160
112070038a
121151b328
1384011b7
14547c6c0
1537c21c5
hex263e910

40102160 has 80 divisors (see below), whose sum is σ = 112195200. Its totient is φ = 13022208.

The previous prime is 40102147. The next prime is 40102171. The reversal of 40102160 is 6120104.

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

It is a Harshad number since it is a multiple of its sum of digits (14).

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 15 ways as a sum of consecutive naturals, for example, 8756 + ... + 12524.

It is an arithmetic number, because the mean of its divisors is an integer number (1402440).

Almost surely, 240102160 is an apocalyptic number.

40102160 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 40102160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56097600).

40102160 is an abundant number, since it is smaller than the sum of its proper divisors (72093040).

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

40102160 is a wasteful number, since it uses less digits than its factorization.

40102160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808 (or 3802 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 40102160 is about 6332.6266272377. The cubic root of 40102160 is about 342.2860937236.

Adding to 40102160 its reverse (6120104), we get a palindrome (46222264).

The spelling of 40102160 in words is "forty million, one hundred two thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 19 20 28 35 38 40 56 70 76 80 95 112 133 140 152 190 266 280 304 380 532 560 665 760 1064 1330 1520 2128 2660 3769 5320 7538 10640 15076 18845 26383 30152 37690 52766 60304 71611 75380 105532 131915 143222 150760 211064 263830 286444 301520 358055 422128 501277 527660 572888 716110 1002554 1055320 1145776 1432220 2005108 2110640 2506385 2864440 4010216 5012770 5728880 8020432 10025540 20051080 40102160