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40215310054 = 2191061997453
BaseRepresentation
bin100101011101000001…
…001110111011100110
310211210200012102100221
4211131001032323212
51124330104410204
630250305354554
72622400331623
oct453501167346
9124720172327
1040215310054
1116067548737
127964038a5a
133a3b86a36a
141d3701734a
1510a5867654
hex95d04eee6

40215310054 has 16 divisors (see below), whose sum is σ = 63557768880. Its totient is φ = 19031384160.

The previous prime is 40215310049. The next prime is 40215310063. The reversal of 40215310054 is 45001351204.

It is a happy number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 458409 + ... + 539044.

It is an arithmetic number, because the mean of its divisors is an integer number (3972360555).

Almost surely, 240215310054 is an apocalyptic number.

40215310054 is a deficient number, since it is larger than the sum of its proper divisors (23342458826).

40215310054 is a wasteful number, since it uses less digits than its factorization.

40215310054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998535.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 40215310054 its reverse (45001351204), we get a palindrome (85216661258).

The spelling of 40215310054 in words is "forty billion, two hundred fifteen million, three hundred ten thousand, fifty-four".

Divisors: 1 2 19 38 1061 2122 20159 40318 997453 1994906 18951607 37903214 1058297633 2116595266 20107655027 40215310054