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144322087 = 7136723671
BaseRepresentation
bin10001001101000…
…10111000100111
3101001120022200111
420212202320213
5243421301322
622153153451
73401501050
oct1046427047
9331508614
10144322087
1174514358
12403bb887
1323b916b0
141524b727
15ca0c177
hex89a2e27

144322087 has 16 divisors (see below), whose sum is σ = 180285952. Its totient is φ = 112479840.

The previous prime is 144322069. The next prime is 144322097. The reversal of 144322087 is 780223441.

It is a cyclic number.

It is not a de Polignac number, because 144322087 - 211 = 144320039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144322037) 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 15 ways as a sum of consecutive naturals, for example, 5739 + ... + 17932.

It is an arithmetic number, because the mean of its divisors is an integer number (11267872).

Almost surely, 2144322087 is an apocalyptic number.

144322087 is a deficient number, since it is larger than the sum of its proper divisors (35963865).

144322087 is a wasteful number, since it uses less digits than its factorization.

144322087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23758.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 144322087 is about 12013.4127957046. The cubic root of 144322087 is about 524.5387779956.

The spelling of 144322087 in words is "one hundred forty-four million, three hundred twenty-two thousand, eighty-seven".

Divisors: 1 7 13 67 91 469 871 6097 23671 165697 307723 1585957 2154061 11101699 20617441 144322087