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91948801 = 7175931303
BaseRepresentation
bin1010111101100…
…00011100000001
320102000111001011
411132300130001
5142014330201
613042440521
72164360210
oct536603401
9212014034
1091948801
11479a254a
1226963141
1316084c99
14c2d7077
158114151
hex57b0701

91948801 has 16 divisors (see below), whose sum is σ = 111538944. Its totient is φ = 73995264.

The previous prime is 91948781. The next prime is 91948807. The reversal of 91948801 is 10884919.

It is not a de Polignac number, because 91948801 - 27 = 91948673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91948807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69916 + ... + 71218.

It is an arithmetic number, because the mean of its divisors is an integer number (6971184).

Almost surely, 291948801 is an apocalyptic number.

It is an amenable number.

91948801 is a deficient number, since it is larger than the sum of its proper divisors (19590143).

91948801 is a wasteful number, since it uses less digits than its factorization.

91948801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 91948801 is about 9588.9937428283. The cubic root of 91948801 is about 451.3519850419.

The spelling of 91948801 in words is "ninety-one million, nine hundred forty-eight thousand, eight hundred one".

Divisors: 1 7 17 119 593 1303 4151 9121 10081 22151 70567 155057 772679 5408753 13135543 91948801