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91008116 = 22971631439
BaseRepresentation
bin1010110110010…
…10110001110100
320100020200122222
411123022301310
5141244224431
613010341512
72153361533
oct533126164
9210220588
1091008116
114740a821
122658a898
1315b15a74
14c13031a
157eca57b
hex56cac74

91008116 has 24 divisors (see below), whose sum is σ = 162005760. Its totient is φ = 44727552.

The previous prime is 91008109. The next prime is 91008131. The reversal of 91008116 is 61180019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62525 + ... + 63963.

It is an arithmetic number, because the mean of its divisors is an integer number (6750240).

Almost surely, 291008116 is an apocalyptic number.

It is an amenable number.

91008116 is a deficient number, since it is larger than the sum of its proper divisors (70997644).

91008116 is a wasteful number, since it uses less digits than its factorization.

91008116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1701 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 91008116 is about 9539.8173986717. The cubic root of 91008116 is about 449.8075160321.

The spelling of 91008116 in words is "ninety-one million, eight thousand, one hundred sixteen".

Divisors: 1 2 4 97 163 194 326 388 652 1439 2878 5756 15811 31622 63244 139583 234557 279166 469114 558332 938228 22752029 45504058 91008116