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91036141 = 7103912517
BaseRepresentation
bin1010110110100…
…01100111101101
320100022010002221
411123101213231
5141301124031
613011115341
72153536330
oct533214755
9210263087
1091036141
1147429889
12265a2b51
1315b25751
14c13a617
157ed3a11
hex56d19ed

91036141 has 8 divisors (see below), whose sum is σ = 104149760. Its totient is φ = 77949648.

The previous prime is 91036123. The next prime is 91036157. The reversal of 91036141 is 14163019.

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

It is not a de Polignac number, because 91036141 - 219 = 90511853 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 (91036111) 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, 1015 + ... + 13531.

It is an arithmetic number, because the mean of its divisors is an integer number (13018720).

Almost surely, 291036141 is an apocalyptic number.

It is an amenable number.

91036141 is a deficient number, since it is larger than the sum of its proper divisors (13113619).

91036141 is a wasteful number, since it uses less digits than its factorization.

91036141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13563.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 91036141 is about 9541.2861292386. The cubic root of 91036141 is about 449.8536824712.

The spelling of 91036141 in words is "ninety-one million, thirty-six thousand, one hundred forty-one".

Divisors: 1 7 1039 7273 12517 87619 13005163 91036141