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40810580 = 22541157317
BaseRepresentation
bin1001101110101…
…1100001010100
32211210101120222
42123223201110
540421414310
64014413512
71003612166
oct233534124
984711528
1040810580
1121044658
1211801298
1385bb795
1455c4936
1538b2055
hex26eb854

40810580 has 48 divisors (see below), whose sum is σ = 88630416. Its totient is φ = 15774720.

The previous prime is 40810573. The next prime is 40810597. The reversal of 40810580 is 8501804.

40810580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 18267076 + 22543504 = 4274^2 + 4748^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128582 + ... + 128898.

It is an arithmetic number, because the mean of its divisors is an integer number (1846467).

Almost surely, 240810580 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 40810580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44315208).

40810580 is an abundant number, since it is smaller than the sum of its proper divisors (47819836).

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

40810580 is a wasteful number, since it uses less digits than its factorization.

40810580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 40810580 is about 6388.3158970107. The cubic root of 40810580 is about 344.2898786986.

The spelling of 40810580 in words is "forty million, eight hundred ten thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 41 82 157 164 205 314 317 410 628 634 785 820 1268 1570 1585 3140 3170 6340 6437 12874 12997 25748 25994 32185 49769 51988 64370 64985 99538 128740 129970 199076 248845 259940 497690 995380 2040529 4081058 8162116 10202645 20405290 40810580