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2144232401 = 54110973613
BaseRepresentation
bin111111111001110…
…0110001111010001
312112102202021212212
41333303212033101
513342410414101
6552434201505
7104064450263
oct17763461721
95472667785
102144232401
11a003aa5a3
124ba123295
13282306c8c
14164ac1b33
15c83a31bb
hex7fce63d1

2144232401 has 8 divisors (see below), whose sum is σ = 2150749224. Its totient is φ = 2137726080.

The previous prime is 2144232383. The next prime is 2144232437. The reversal of 2144232401 is 1042324412.

It can be written as a sum of positive squares in 4 ways, for example, as 48790225 + 2095442176 = 6985^2 + 45776^2 .

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 2144232401 - 214 = 2144216017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144232301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591671 + ... + 595283.

It is an arithmetic number, because the mean of its divisors is an integer number (268843653).

Almost surely, 22144232401 is an apocalyptic number.

It is an amenable number.

2144232401 is a deficient number, since it is larger than the sum of its proper divisors (6516823).

2144232401 is a wasteful number, since it uses less digits than its factorization.

2144232401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2144232401 is about 46305.8570917330. The cubic root of 2144232401 is about 1289.5077345754.

Adding to 2144232401 its reverse (1042324412), we get a palindrome (3186556813).

The spelling of 2144232401 in words is "two billion, one hundred forty-four million, two hundred thirty-two thousand, four hundred one".

Divisors: 1 541 1097 3613 593477 1954633 3963461 2144232401