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144443122 = 272221561
BaseRepresentation
bin10001001110000…
…00011011110010
3101001210110201021
420213000123302
5243434134442
622155530054
73402513655
oct1047003362
9331713637
10144443122
117459728a
124045992a
1323c04805
141527d89c
15ca32e67
hex89c06f2

144443122 has 4 divisors (see below), whose sum is σ = 216664686. Its totient is φ = 72221560.

The previous prime is 144443107. The next prime is 144443137. The reversal of 144443122 is 221344441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221344441 = 312170921.

It is an interprime number because it is at equal distance from previous prime (144443107) and next prime (144443137).

It can be written as a sum of positive squares in only one way, i.e., 93334921 + 51108201 = 9661^2 + 7149^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36110779 + ... + 36110782.

Almost surely, 2144443122 is an apocalyptic number.

144443122 is a deficient number, since it is larger than the sum of its proper divisors (72221564).

144443122 is an equidigital number, since it uses as much as digits as its factorization.

144443122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72221563.

The product of its digits is 3072, while the sum is 25.

The square root of 144443122 is about 12018.4492344062. The cubic root of 144443122 is about 524.6853709686.

Adding to 144443122 its reverse (221344441), we get a palindrome (365787563).

The spelling of 144443122 in words is "one hundred forty-four million, four hundred forty-three thousand, one hundred twenty-two".

Divisors: 1 2 72221561 144443122