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144893952 = 2113271123
BaseRepresentation
bin10001010001011…
…10100000000000
3101002122101010200
420220232200000
5244043101302
622213325200
73406402230
oct1050564000
9332571120
10144893952
1174874a75
1240636800
1324031a88
1415359cc0
15cac181c
hex8a2e800

144893952 has 144 divisors (see below), whose sum is σ = 478689120. Its totient is φ = 41361408.

The previous prime is 144893933. The next prime is 144893953. The reversal of 144893952 is 259398441.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 144893898 and 144893907.

It is not an unprimeable number, because it can be changed into a prime (144893953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128463 + ... + 129585.

It is an arithmetic number, because the mean of its divisors is an integer number (3324230).

Almost surely, 2144893952 is an apocalyptic number.

144893952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144893952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239344560).

144893952 is an abundant number, since it is smaller than the sum of its proper divisors (333795168).

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

144893952 is a wasteful number, since it uses less digits than its factorization.

144893952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1135 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 144893952 is about 12037.1903698496. The cubic root of 144893952 is about 525.2306795793.

The spelling of 144893952 in words is "one hundred forty-four million, eight hundred ninety-three thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 224 252 256 288 336 384 448 504 512 576 672 768 896 1008 1024 1123 1152 1344 1536 1792 2016 2048 2246 2304 2688 3072 3369 3584 4032 4492 4608 5376 6144 6738 7168 7861 8064 8984 9216 10107 10752 13476 14336 15722 16128 17968 18432 20214 21504 23583 26952 31444 32256 35936 40428 43008 47166 53904 62888 64512 70749 71872 80856 94332 107808 125776 129024 141498 143744 161712 188664 215616 251552 282996 287488 323424 377328 431232 503104 565992 574976 646848 754656 862464 1006208 1131984 1149952 1293696 1509312 1724928 2012416 2263968 2299904 2587392 3018624 3449856 4024832 4527936 5174784 6037248 6899712 8049664 9055872 10349568 12074496 16099328 18111744 20699136 24148992 36223488 48297984 72446976 144893952