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1272193 = 1397861
BaseRepresentation
bin100110110100110000001
32101122010021
410312212001
5311202233
643133441
713546006
oct4664601
92348107
101272193
117998aa
12514281
133570a0
142518ad
151a1e2d
hex136981

1272193 has 4 divisors (see below), whose sum is σ = 1370068. Its totient is φ = 1174320.

The previous prime is 1272191. The next prime is 1272203. The reversal of 1272193 is 3912721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 620944 + 651249 = 788^2 + 807^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272193 - 21 = 1272191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272191) 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, 48918 + ... + 48943.

It is an arithmetic number, because the mean of its divisors is an integer number (342517).

21272193 is an apocalyptic number.

1272193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1272193 is a deficient number, since it is larger than the sum of its proper divisors (97875).

1272193 is an equidigital number, since it uses as much as digits as its factorization.

1272193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97874.

The product of its digits is 756, while the sum is 25.

The square root of 1272193 is about 1127.9153337020. The cubic root of 1272193 is about 108.3555099899.

The spelling of 1272193 in words is "one million, two hundred seventy-two thousand, one hundred ninety-three".

Divisors: 1 13 97861 1272193