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40150728000 = 26345361961
BaseRepresentation
bin100101011001001010…
…110111110101000000
310211122011200022110000
4211121022313311000
51124212041244000
630240041240000
72620654362015
oct453112676500
9124564608400
1040150728000
1116034048239
127946493000
133a2b377926
141d2c60570c
15109ed5c000
hex9592b7d40

40150728000 has 280 divisors, whose sum is σ = 148538528424. Its totient is φ = 10706688000.

The previous prime is 40150727989. The next prime is 40150728019. The reversal of 40150728000 is 82705104.

It can be written as a sum of positive squares in 4 ways, for example, as 186624 + 40150541376 = 432^2 + 200376^2 .

It is a super-2 number, since 2×401507280002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 39 ways as a sum of consecutive naturals, for example, 617020 + ... + 678980.

Almost surely, 240150728000 is an apocalyptic number.

40150728000 is a gapful number since it is divisible by the number (40) 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 40150728000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74269264212).

40150728000 is an abundant number, since it is smaller than the sum of its proper divisors (108387800424).

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

40150728000 is an equidigital number, since it uses as much as digits as its factorization.

40150728000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62000 (or 61971 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The spelling of 40150728000 in words is "forty billion, one hundred fifty million, seven hundred twenty-eight thousand".