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40312050215 = 522133364271
BaseRepresentation
bin100101100010110010…
…010001001000100111
310212001102020022220212
4211202302101020213
51130024341101330
630304043050035
72624653526123
oct454262211047
9125042208825
1040312050215
1116107112a88
12799051091b
133a5590c168
141d45bda583
1510ae0c6295
hex962c91227

40312050215 has 8 divisors (see below), whose sum is σ = 48376778688. Its totient is φ = 32248094560.

The previous prime is 40312050211. The next prime is 40312050307. The reversal of 40312050215 is 51205021304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40312050215 - 22 = 40312050211 is a prime.

It is a super-2 number, since 2×403120502152 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40312050211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71471 + ... + 292800.

It is an arithmetic number, because the mean of its divisors is an integer number (6047097336).

Almost surely, 240312050215 is an apocalyptic number.

40312050215 is a deficient number, since it is larger than the sum of its proper divisors (8064728473).

40312050215 is a wasteful number, since it uses less digits than its factorization.

40312050215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386409.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 40312050215 its reverse (51205021304), we get a palindrome (91517071519).

The spelling of 40312050215 in words is "forty billion, three hundred twelve million, fifty thousand, two hundred fifteen".

Divisors: 1 5 22133 110665 364271 1821355 8062410043 40312050215