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145584768 = 2737411321
BaseRepresentation
bin10001010110101…
…11001010000000
3101010221110202110
420223113022000
5244232203033
622240215320
73415310250
oct1053271200
9333843673
10145584768
11751a6a9a
124090a540
1324214344
1415499960
15cbab363
hex8ad7280

145584768 has 128 divisors (see below), whose sum is σ = 453075840. Its totient is φ = 40550400.

The previous prime is 145584763. The next prime is 145584781. The reversal of 145584768 is 867485541.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1455847682 = 42389849347227648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (145584763) by changing a digit.

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, 109548 + ... + 110868.

It is an arithmetic number, because the mean of its divisors is an integer number (3539655).

Almost surely, 2145584768 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 145584768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226537920).

145584768 is an abundant number, since it is smaller than the sum of its proper divisors (307491072).

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

145584768 is a wasteful number, since it uses less digits than its factorization.

145584768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386 (or 1374 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 145584768 is about 12065.8513168363. The cubic root of 145584768 is about 526.0640767790.

The spelling of 145584768 in words is "one hundred forty-five million, five hundred eighty-four thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 41 42 48 56 64 82 84 96 112 123 128 164 168 192 224 246 287 328 336 384 448 492 574 656 672 861 896 984 1148 1312 1321 1344 1722 1968 2296 2624 2642 2688 3444 3936 3963 4592 5248 5284 6888 7872 7926 9184 9247 10568 13776 15744 15852 18368 18494 21136 27552 27741 31704 36736 36988 42272 54161 55104 55482 63408 73976 84544 108322 110208 110964 126816 147952 162483 169088 216644 221928 253632 295904 324966 379127 433288 443856 507264 591808 649932 758254 866576 887712 1137381 1183616 1299864 1516508 1733152 1775424 2274762 2599728 3033016 3466304 3550848 4549524 5199456 6066032 6932608 9099048 10398912 12132064 18198096 20797824 24264128 36396192 48528256 72792384 145584768