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40155402813750 = 23554758732173
BaseRepresentation
bin10010010000101011010001…
…00001010100000100110110
312021011211010001201220100000
421020111220201110010312
520230401231110020000
6221223045401532130
711313063213133410
oct1110255041240466
9167154101656300
1040155402813750
11118818a1048154
1246064771a4046
13195383b290a23
149cb7636259b0
15499802cc0000
hex248568854136

40155402813750 has 480 divisors, whose sum is σ = 129076161806592. Its totient is φ = 9162456912000.

The previous prime is 40155402813739. The next prime is 40155402813791. The reversal of 40155402813750 is 5731820455104.

40155402813750 is a `hidden beast` number, since 4 + 0 + 1 + 5 + 540 + 28 + 1 + 37 + 50 = 666.

It is a super-2 number, since 2×401554028137502 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40155402813696 and 40155402813705.

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 239 ways as a sum of consecutive naturals, for example, 1248092664 + ... + 1248124836.

Almost surely, 240155402813750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40155402813750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64538080903296).

40155402813750 is an abundant number, since it is smaller than the sum of its proper divisors (88920758992842).

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

40155402813750 is an equidigital number, since it uses as much as digits as its factorization.

40155402813750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32804 (or 32777 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 40155402813750 in words is "forty trillion, one hundred fifty-five billion, four hundred two million, eight hundred thirteen thousand, seven hundred fifty".