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1402444441 = 4332614987
BaseRepresentation
bin101001110010111…
…1001101010011001
310121201221120002201
41103211321222121
510333011210231
6351055130201
746516403206
oct12345715231
93551846081
101402444441
1165a7092a2
12331813961
131947262a8
14d438acad
15831c9161
hex53979a99

1402444441 has 4 divisors (see below), whose sum is σ = 1435059472. Its totient is φ = 1369829412.

The previous prime is 1402444429. The next prime is 1402444447. The reversal of 1402444441 is 1444442041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1402444441 - 219 = 1401920153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1402444447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16307451 + ... + 16307536.

It is an arithmetic number, because the mean of its divisors is an integer number (358764868).

Almost surely, 21402444441 is an apocalyptic number.

It is an amenable number.

1402444441 is a deficient number, since it is larger than the sum of its proper divisors (32615031).

1402444441 is an equidigital number, since it uses as much as digits as its factorization.

1402444441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32615030.

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 1402444441 is about 37449.2248384396. The cubic root of 1402444441 is about 1119.3396513939.

Adding to 1402444441 its reverse (1444442041), we get a palindrome (2846886482).

The spelling of 1402444441 in words is "one billion, four hundred two million, four hundred forty-four thousand, four hundred forty-one".

Divisors: 1 43 32614987 1402444441