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1272601 = 11196089
BaseRepresentation
bin100110110101100011001
32101122200101
410312230121
5311210401
643135401
713550131
oct4665431
92348611
101272601
1179a140
12514561
13357325
14251ac1
151a2101
hex136b19

1272601 has 8 divisors (see below), whose sum is σ = 1461600. Its totient is φ = 1095840.

The previous prime is 1272589. The next prime is 1272617. The reversal of 1272601 is 1062721.

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

It is a cyclic number.

It is not a de Polignac number, because 1272601 - 217 = 1141529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1272631) 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, 2836 + ... + 3253.

It is an arithmetic number, because the mean of its divisors is an integer number (182700).

21272601 is an apocalyptic number.

1272601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1272601 is the 505-th centered decagonal number.

It is an amenable number.

1272601 is a deficient number, since it is larger than the sum of its proper divisors (188999).

1272601 is a wasteful number, since it uses less digits than its factorization.

1272601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1272601 is about 1128.0961838425. The cubic root of 1272601 is about 108.3670921746.

The spelling of 1272601 in words is "one million, two hundred seventy-two thousand, six hundred one".

Divisors: 1 11 19 209 6089 66979 115691 1272601