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40505313210 = 2351971061953
BaseRepresentation
bin100101101110010011…
…100000011110111010
310212112212220002220120
4211232103200132322
51130423330010320
630335145234110
72632521324105
oct455623403672
9125485802816
1040505313210
11161a621436a
127a25192936
133a86977b6b
141d6374773c
1510c104e440
hex96e4e07ba

40505313210 has 32 divisors (see below), whose sum is σ = 102329213760. Its totient is φ = 10232921088.

The previous prime is 40505313197. The next prime is 40505313227. The reversal of 40505313210 is 1231350504.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35530407 + ... + 35531546.

It is an arithmetic number, because the mean of its divisors is an integer number (3197787930).

Almost surely, 240505313210 is an apocalyptic number.

40505313210 is an abundant number, since it is smaller than the sum of its proper divisors (61823900550).

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

40505313210 is a wasteful number, since it uses less digits than its factorization.

40505313210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71061982.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 40505313210 its reverse (1231350504), we get a palindrome (41736663714).

The spelling of 40505313210 in words is "forty billion, five hundred five million, three hundred thirteen thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 71061953 142123906 213185859 355309765 426371718 710619530 1065929295 1350177107 2131858590 2700354214 4050531321 6750885535 8101062642 13501771070 20252656605 40505313210