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1206993 = 3402331
BaseRepresentation
bin100100110101011010001
32021022200110
410212223101
5302110433
641511533
713154634
oct4465321
92238613
101206993
11754917
124a25a9
133334c8
14235c1b
1518c963
hex126ad1

1206993 has 4 divisors (see below), whose sum is σ = 1609328. Its totient is φ = 804660.

The previous prime is 1206979. The next prime is 1207001. The reversal of 1206993 is 3996021.

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.

It is not a de Polignac number, because 1206993 - 210 = 1205969 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1206993.

It is not an unprimeable number, because it can be changed into a prime (1206973) 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, 201163 + ... + 201168.

It is an arithmetic number, because the mean of its divisors is an integer number (402332).

21206993 is an apocalyptic number.

It is an amenable number.

1206993 is a deficient number, since it is larger than the sum of its proper divisors (402335).

1206993 is an equidigital number, since it uses as much as digits as its factorization.

1206993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402334.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 1206993 is about 1098.6323315832. The cubic root of 1206993 is about 106.4718786648.

It can be divided in two parts, 120 and 6993, that multiplied together give a triangular number (839160 = T1295).

The spelling of 1206993 in words is "one million, two hundred six thousand, nine hundred ninety-three".

Divisors: 1 3 402331 1206993