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40297132512 = 253271312712107
BaseRepresentation
bin100101100001111001…
…010111000111100000
310212000101011102200100
4211201321113013200
51130012031220022
630302351222400
72624412655230
oct454171270740
9125011142610
1040297132512
11160a97540aa
127987517a00
133a527b8110
141d43c35cc0
1510acb2b1ac
hex961e571e0

40297132512 has 288 divisors, whose sum is σ = 142162255872. Its totient is φ = 10543260672.

The previous prime is 40297132489. The next prime is 40297132559. The reversal of 40297132512 is 21523179204.

40297132512 is a `hidden beast` number, since 4 + 0 + 2 + 9 + 7 + 132 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3322363 + ... + 3334469.

It is an arithmetic number, because the mean of its divisors is an integer number (493618944).

Almost surely, 240297132512 is an apocalyptic number.

40297132512 is a gapful number since it is divisible by the number (42) 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 40297132512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71081127936).

40297132512 is an abundant number, since it is smaller than the sum of its proper divisors (101865123360).

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

40297132512 is a wasteful number, since it uses less digits than its factorization.

40297132512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12270 (or 12259 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 40297132512 in words is "forty billion, two hundred ninety-seven million, one hundred thirty-two thousand, five hundred twelve".