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93493009 = 151619159
BaseRepresentation
bin1011001001010…
…01011100010001
320111220221022001
411210221130101
5142413234014
613135514001
72213451241
oct544513421
9214827261
1093493009
1148857755
1227388901
13164a5b0c
14c5b9b21
15831b974
hex5929711

93493009 has 4 divisors (see below), whose sum is σ = 94112320. Its totient is φ = 92873700.

The previous prime is 93493003. The next prime is 93493021. The reversal of 93493009 is 90039439.

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: 90039439 = 712862777.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-93493009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93493003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309429 + ... + 309730.

It is an arithmetic number, because the mean of its divisors is an integer number (23528080).

Almost surely, 293493009 is an apocalyptic number.

It is an amenable number.

93493009 is a deficient number, since it is larger than the sum of its proper divisors (619311).

93493009 is a wasteful number, since it uses less digits than its factorization.

93493009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619310.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 93493009 is about 9669.1783001453. The cubic root of 93493009 is about 453.8646717693.

The spelling of 93493009 in words is "ninety-three million, four hundred ninety-three thousand, nine".

Divisors: 1 151 619159 93493009