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1292993 = 13791259
BaseRepresentation
bin100111011101011000001
32102200122122
410323223001
5312333433
643414025
713663442
oct4735301
92380578
101292993
11803499
12524315
133636b0
142592c9
151a8198
hex13bac1

1292993 has 8 divisors (see below), whose sum is σ = 1411200. Its totient is φ = 1177488.

The previous prime is 1292989. The next prime is 1292999. The reversal of 1292993 is 3992921.

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

It is not a de Polignac number, because 1292993 - 22 = 1292989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1292999) 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 7 ways as a sum of consecutive naturals, for example, 398 + ... + 1656.

It is an arithmetic number, because the mean of its divisors is an integer number (176400).

21292993 is an apocalyptic number.

1292993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1292993 is a deficient number, since it is larger than the sum of its proper divisors (118207).

1292993 is a wasteful number, since it uses less digits than its factorization.

1292993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its digits is 8748, while the sum is 35.

The square root of 1292993 is about 1137.0985005706. The cubic root of 1292993 is about 108.9428480232.

The spelling of 1292993 in words is "one million, two hundred ninety-two thousand, nine hundred ninety-three".

Divisors: 1 13 79 1027 1259 16367 99461 1292993