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144742488 = 233111732251
BaseRepresentation
bin10001010000010…
…01100001011000
3101002100200100220
420220021201120
5244023224423
622210200040
73405201522
oct1050114130
9332320326
10144742488
11747811a0
1240583020
1323caab57
141531aa12
15ca919e3
hex8a09858

144742488 has 64 divisors (see below), whose sum is σ = 417985920. Its totient is φ = 41280000.

The previous prime is 144742459. The next prime is 144742489. The reversal of 144742488 is 884247441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144742489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11638 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (6531030).

Almost surely, 2144742488 is an apocalyptic number.

It is an amenable number.

144742488 is an abundant number, since it is smaller than the sum of its proper divisors (273243432).

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

144742488 is a wasteful number, since it uses less digits than its factorization.

144742488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32288 (or 32284 counting only the distinct ones).

The product of its digits is 229376, while the sum is 42.

The square root of 144742488 is about 12030.8972233994. The cubic root of 144742488 is about 525.0476002192.

The spelling of 144742488 in words is "one hundred forty-four million, seven hundred forty-two thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 17 22 24 33 34 44 51 66 68 88 102 132 136 187 204 264 374 408 561 748 1122 1496 2244 4488 32251 64502 96753 129004 193506 258008 354761 387012 548267 709522 774024 1064283 1096534 1419044 1644801 2128566 2193068 2838088 3289602 4257132 4386136 6030937 6579204 8514264 12061874 13158408 18092811 24123748 36185622 48247496 72371244 144742488