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91742048 = 2543611093
BaseRepresentation
bin1010111011111…
…01111101100000
320101121222102122
411131331331200
5141441221143
613034203412
72162536346
oct535757540
9211558378
1091742048
1147871182
1226883568
1316011b48
14c281996
1580c2c68
hex577df60

91742048 has 48 divisors (see below), whose sum is σ = 188019216. Its totient is φ = 44029440.

The previous prime is 91742041. The next prime is 91742083. The reversal of 91742048 is 84024719.

It is a junction number, because it is equal to n+sod(n) for n = 91741999 and 91742017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91742041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83390 + ... + 84482.

It is an arithmetic number, because the mean of its divisors is an integer number (3917067).

Almost surely, 291742048 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 91742048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94009608).

91742048 is an abundant number, since it is smaller than the sum of its proper divisors (96277168).

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

91742048 is a wasteful number, since it uses less digits than its factorization.

91742048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 91742048 is about 9578.2069303184. The cubic root of 91742048 is about 451.0134328344.

The spelling of 91742048 in words is "ninety-one million, seven hundred forty-two thousand, forty-eight".

Divisors: 1 2 4 8 16 32 43 61 86 122 172 244 344 488 688 976 1093 1376 1952 2186 2623 4372 5246 8744 10492 17488 20984 34976 41968 46999 66673 83936 93998 133346 187996 266692 375992 533384 751984 1066768 1503968 2133536 2866939 5733878 11467756 22935512 45871024 91742048