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91425011 = 474434391
BaseRepresentation
bin1010111001100…
…00100011110011
320101000212112112
411130300203303
5141401100021
613023315535
72160046136
oct534604363
9211025475
1091425011
1147674a67
122674bbab
1315c30752
14c1dc21d
15805dd5b
hex57308f3

91425011 has 8 divisors (see below), whose sum is σ = 93602304. Its totient is φ = 89257480.

The previous prime is 91425001. The next prime is 91425049. The reversal of 91425011 is 11052419.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 91425011 - 218 = 91162867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91425001) 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, 18626 + ... + 23016.

It is an arithmetic number, because the mean of its divisors is an integer number (11700288).

Almost surely, 291425011 is an apocalyptic number.

91425011 is a deficient number, since it is larger than the sum of its proper divisors (2177293).

91425011 is a wasteful number, since it uses less digits than its factorization.

91425011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 91425011 is about 9561.6426935961. The cubic root of 91425011 is about 450.4933042940.

The spelling of 91425011 in words is "ninety-one million, four hundred twenty-five thousand, eleven".

Divisors: 1 47 443 4391 20821 206377 1945213 91425011