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144842357 = 11127103681
BaseRepresentation
bin10001010001000…
…01111001110101
3101002112202100202
420220201321311
5244034423412
622212250245
73406065632
oct1050417165
9332482322
10144842357
117483a230
1240610985
132401444a
1415345189
15cab13c2
hex8a21e75

144842357 has 8 divisors (see below), whose sum is σ = 159255552. Its totient is φ = 130636800.

The previous prime is 144842317. The next prime is 144842359. The reversal of 144842357 is 753248441.

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 144842357 - 214 = 144825973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144842357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144842359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50444 + ... + 53237.

It is an arithmetic number, because the mean of its divisors is an integer number (19906944).

Almost surely, 2144842357 is an apocalyptic number.

It is an amenable number.

144842357 is a deficient number, since it is larger than the sum of its proper divisors (14413195).

144842357 is a wasteful number, since it uses less digits than its factorization.

144842357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103819.

The product of its digits is 107520, while the sum is 38.

The square root of 144842357 is about 12035.0470294054. The cubic root of 144842357 is about 525.1683293943.

The spelling of 144842357 in words is "one hundred forty-four million, eight hundred forty-two thousand, three hundred fifty-seven".

Divisors: 1 11 127 1397 103681 1140491 13167487 144842357