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9492121 = 43220747
BaseRepresentation
bin100100001101…
…011010011001
3122212020202001
4210031122121
54412221441
6535241001
7143452552
oct44153231
918766661
109492121
1153a3631
123219161
131c74652
141391329
15c77731
hex90d699

9492121 has 4 divisors (see below), whose sum is σ = 9712912. Its totient is φ = 9271332.

The previous prime is 9492089. The next prime is 9492139. The reversal of 9492121 is 1212949.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1212949 = 9411289.

It is a cyclic number.

It is not a de Polignac number, because 9492121 - 25 = 9492089 is a prime.

It is a super-2 number, since 2×94921212 = 180200722157282, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

9492121 is a lucky number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 9492121.

It is not an unprimeable number, because it can be changed into a prime (9492181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110331 + ... + 110416.

It is an arithmetic number, because the mean of its divisors is an integer number (2428228).

Almost surely, 29492121 is an apocalyptic number.

It is an amenable number.

9492121 is a deficient number, since it is larger than the sum of its proper divisors (220791).

9492121 is a wasteful number, since it uses less digits than its factorization.

9492121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220790.

The product of its digits is 1296, while the sum is 28.

The square root of 9492121 is about 3080.9285937847. The cubic root of 9492121 is about 211.7326120465.

The spelling of 9492121 in words is "nine million, four hundred ninety-two thousand, one hundred twenty-one".

Divisors: 1 43 220747 9492121