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240281001 = 3251672
BaseRepresentation
bin11100101001001…
…10010110101001
3121202010112120100
432110212112221
5443002443001
635502020013
75645232462
oct1624462651
9552115510
10240281001
111136a5744
1268577609
133aa1ba0c
1423ca9d69
1516164586
hexe5265a9

240281001 has 9 divisors (see below), whose sum is σ = 347139741. Its totient is φ = 160156332.

The previous prime is 240280993. The next prime is 240281029. The reversal of 240281001 is 100182042.

The square root of 240281001 is 15501.

It is a perfect power (a square), and thus also a powerful number.

240281001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 240281001 - 23 = 240280993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240281051) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 43920 + ... + 49086.

Almost surely, 2240281001 is an apocalyptic number.

240281001 is the 15501-st square number.

240281001 is the 7751-st centered octagonal number.

It is an amenable number.

240281001 is a deficient number, since it is larger than the sum of its proper divisors (106858740).

240281001 is an frugal number, since it uses more digits than its factorization.

240281001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10340 (or 5170 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The cubic root of 240281001 is about 621.6889442175.

The spelling of 240281001 in words is "two hundred forty million, two hundred eighty-one thousand, one".

Divisors: 1 3 9 5167 15501 46503 26697889 80093667 240281001