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9100000140 = 22357112385639
BaseRepresentation
bin10000111100110011…
…01111101110001100
3212111012020220102020
420132121233232030
5122114100001030
64102552330140
7441335503440
oct103631575614
925435226366
109100000140
11394a792880
12191b6a3950
13b203c3b8a
14624806820
15383d81510
hex21e66fb8c

9100000140 has 192 divisors, whose sum is σ = 33148846080. Its totient is φ = 1808674560.

The previous prime is 9100000109. The next prime is 9100000171. The reversal of 9100000140 is 410000019.

It is an interprime number because it is at equal distance from previous prime (9100000109) and next prime (9100000171).

It is a Harshad number since it is a multiple of its sum of digits (15).

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 63 ways as a sum of consecutive naturals, for example, 63441 + ... + 149079.

It is an arithmetic number, because the mean of its divisors is an integer number (172650240).

Almost surely, 29100000140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9100000140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16574423040).

9100000140 is an abundant number, since it is smaller than the sum of its proper divisors (24048845940).

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

9100000140 is a wasteful number, since it uses less digits than its factorization.

9100000140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85692 (or 85690 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 9100000140 is about 95393.9208754939. The cubic root of 9100000140 is about 2087.7594893699.

Adding to 9100000140 its reverse (410000019), we get a palindrome (9510000159).

The spelling of 9100000140 in words is "nine billion, one hundred million, one hundred forty", and thus it is an aban number.