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91616094 = 232171571907
BaseRepresentation
bin1010111010111…
…11001101011110
320101101120122200
411131133031132
5141423203334
613031352330
72161503213
oct535371536
9211346580
1091616094
1147795589
12268226a6
1315c9970b
14c24bb0a
15809a799
hex575f35e

91616094 has 48 divisors (see below), whose sum is σ = 211627728. Its totient is φ = 28544256.

The previous prime is 91616093. The next prime is 91616137. The reversal of 91616094 is 49061619.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91616093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47089 + ... + 48995.

It is an arithmetic number, because the mean of its divisors is an integer number (4408911).

Almost surely, 291616094 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91616094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105813864).

91616094 is an abundant number, since it is smaller than the sum of its proper divisors (120011634).

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

91616094 is a wasteful number, since it uses less digits than its factorization.

91616094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 91616094 is about 9571.6296418113. The cubic root of 91616094 is about 450.8069373251.

The spelling of 91616094 in words is "ninety-one million, six hundred sixteen thousand, ninety-four".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 157 306 314 471 942 1413 1907 2669 2826 3814 5338 5721 8007 11442 16014 17163 24021 32419 34326 48042 64838 97257 194514 291771 299399 583542 598798 898197 1796394 2694591 5089783 5389182 10179566 15269349 30538698 45808047 91616094