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144270042 = 23713725073
BaseRepresentation
bin10001001100101…
…10001011011010
3101001110200021220
420212112023122
5243413120132
622152112510
73401163240
oct1046261332
9331420256
10144270042
1174489244
1240395736
1323b73ab7
1415236790
15c9eba2c
hex89962da

144270042 has 32 divisors (see below), whose sum is σ = 332180352. Its totient is φ = 40917504.

The previous prime is 144270023. The next prime is 144270047. The reversal of 144270042 is 240072441.

It is a junction number, because it is equal to n+sod(n) for n = 144269994 and 144270021.

It is not an unprimeable number, because it can be changed into a prime (144270047) 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, 6783 + ... + 18290.

It is an arithmetic number, because the mean of its divisors is an integer number (10380636).

Almost surely, 2144270042 is an apocalyptic number.

144270042 is an abundant number, since it is smaller than the sum of its proper divisors (187910310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144270042 is a wasteful number, since it uses less digits than its factorization.

144270042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25222.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 144270042 is about 12011.2464798621. The cubic root of 144270042 is about 524.4757178789.

The spelling of 144270042 in words is "one hundred forty-four million, two hundred seventy thousand, forty-two".

Divisors: 1 2 3 6 7 14 21 42 137 274 411 822 959 1918 2877 5754 25073 50146 75219 150438 175511 351022 526533 1053066 3435001 6870002 10305003 20610006 24045007 48090014 72135021 144270042