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240538144 = 25711412381
BaseRepresentation
bin11100101011001…
…01001000100000
3121202121121022011
432111211020200
5443034210034
635511322304
75650353250
oct1625451040
9552547264
10240538144
11113860960
1268680394
133aaaba82
1423d35960
15161b5864
hexe565220

240538144 has 96 divisors (see below), whose sum is σ = 605066112. Its totient is φ = 91392000.

The previous prime is 240538099. The next prime is 240538159. The reversal of 240538144 is 441835042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99834 + ... + 102214.

It is an arithmetic number, because the mean of its divisors is an integer number (6302772).

Almost surely, 2240538144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240538144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302533056).

240538144 is an abundant number, since it is smaller than the sum of its proper divisors (364527968).

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

240538144 is a wasteful number, since it uses less digits than its factorization.

240538144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450 (or 2442 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 240538144 is about 15509.2921824305. The cubic root of 240538144 is about 621.9106373826.

The spelling of 240538144 in words is "two hundred forty million, five hundred thirty-eight thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 41 44 56 77 82 88 112 154 164 176 224 287 308 328 352 451 574 616 656 902 1148 1232 1312 1804 2296 2381 2464 3157 3608 4592 4762 6314 7216 9184 9524 12628 14432 16667 19048 25256 26191 33334 38096 50512 52382 66668 76192 97621 101024 104764 133336 183337 195242 209528 266672 366674 390484 419056 533344 683347 733348 780968 838112 1073831 1366694 1466696 1561936 2147662 2733388 2933392 3123872 4295324 5466776 5866784 7516817 8590648 10933552 15033634 17181296 21867104 30067268 34362592 60134536 120269072 240538144