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1241233001 = 2549486949
BaseRepresentation
bin100100111111011…
…1011011001101001
310012111121011120122
41021332323121221
510020223424001
6323055533025
742521210051
oct11176733151
93174534518
101241233001
115877097a8
122a782a175
1316a2002c8
14babc4561
1573e82b1b
hex49fbb669

1241233001 has 4 divisors (see below), whose sum is σ = 1241722500. Its totient is φ = 1240743504.

The previous prime is 1241232997. The next prime is 1241233013. The reversal of 1241233001 is 1003321421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1003321421 = 2621382801.

It can be written as a sum of positive squares in 2 ways, for example, as 697224025 + 544008976 = 26405^2 + 23324^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241233001 - 22 = 1241232997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241232001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240926 + ... + 246023.

It is an arithmetic number, because the mean of its divisors is an integer number (310430625).

Almost surely, 21241233001 is an apocalyptic number.

It is an amenable number.

1241233001 is a deficient number, since it is larger than the sum of its proper divisors (489499).

1241233001 is an equidigital number, since it uses as much as digits as its factorization.

1241233001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489498.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1241233001 is about 35231.1368110653. The cubic root of 1241233001 is about 1074.6930440709.

Adding to 1241233001 its reverse (1003321421), we get a palindrome (2244554422).

The spelling of 1241233001 in words is "one billion, two hundred forty-one million, two hundred thirty-three thousand, one".

Divisors: 1 2549 486949 1241233001