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144202134 = 231923431279
BaseRepresentation
bin10001001100001…
…01100110010110
3101001100020010210
420212011212112
5243403432014
622150430250
73400461246
oct1046054626
9331306123
10144202134
117444221a
1240362386
1323b4bc0b
1415219b26
15c9d6859
hex8985996

144202134 has 64 divisors (see below), whose sum is σ = 324403200. Its totient is φ = 42511392.

The previous prime is 144202129. The next prime is 144202141. The reversal of 144202134 is 431202441.

It is a self number, because there is not a number n which added to its sum of digits gives 144202134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112107 + ... + 113385.

It is an arithmetic number, because the mean of its divisors is an integer number (5068800).

Almost surely, 2144202134 is an apocalyptic number.

144202134 is an abundant number, since it is smaller than the sum of its proper divisors (180201066).

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

144202134 is a wasteful number, since it uses less digits than its factorization.

144202134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144202134 is about 12008.4192964770. The cubic root of 144202134 is about 524.3934146135.

Adding to 144202134 its reverse (431202441), we get a palindrome (575404575).

The spelling of 144202134 in words is "one hundred forty-four million, two hundred two thousand, one hundred thirty-four".

Divisors: 1 2 3 6 19 23 38 43 46 57 69 86 114 129 138 258 437 817 874 989 1279 1311 1634 1978 2451 2558 2622 2967 3837 4902 5934 7674 18791 24301 29417 37582 48602 54997 56373 58834 72903 88251 109994 112746 145806 164991 176502 329982 558923 1044943 1117846 1264931 1676769 2089886 2529862 3134829 3353538 3794793 6269658 7589586 24033689 48067378 72101067 144202134