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9991103101 = 72362056541
BaseRepresentation
bin10010100111000010…
…00010001001111101
3221210022000121212121
421103201002021331
5130430210244401
64331224002541
7502405655320
oct112341021175
927708017777
109991103101
114267798701
121b2a000451
13c32bc3a35
146aacc87b7
153d7201ca1
hex25384227d

9991103101 has 8 divisors (see below), whose sum is σ = 11914856064. Its totient is φ = 8191463280.

The previous prime is 9991103071. The next prime is 9991103107. The reversal of 9991103101 is 1013011999.

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

It is not a de Polignac number, because 9991103101 - 219 = 9990578813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9991103107) 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, 31028110 + ... + 31028431.

It is an arithmetic number, because the mean of its divisors is an integer number (1489357008).

Almost surely, 29991103101 is an apocalyptic number.

It is an amenable number.

9991103101 is a deficient number, since it is larger than the sum of its proper divisors (1923752963).

9991103101 is a wasteful number, since it uses less digits than its factorization.

9991103101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62056571.

The product of its (nonzero) digits is 2187, while the sum is 34.

The square root of 9991103101 is about 99955.5056062446. The cubic root of 9991103101 is about 2153.7955741948.

The spelling of 9991103101 in words is "nine billion, nine hundred ninety-one million, one hundred three thousand, one hundred one".

Divisors: 1 7 23 161 62056541 434395787 1427300443 9991103101