[go: up one dir, main page]

Search a number
-
+
145124144 = 24113167397
BaseRepresentation
bin10001010011001…
…10101100110000
3101010002001220022
420221212230300
5244122433034
622222303012
73411351314
oct1051465460
9333061808
10145124144
1174a11a10
1240727a68
13240b2799
14153b9b44
15cb19b2e
hex8a66b30

145124144 has 80 divisors (see below), whose sum is σ = 322169856. Its totient is φ = 62726400.

The previous prime is 145124143. The next prime is 145124153. The reversal of 145124144 is 441421541.

It is a super-3 number, since 3×1451241443 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145124141) 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, 365354 + ... + 365750.

Almost surely, 2145124144 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 145124144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161084928).

145124144 is an abundant number, since it is smaller than the sum of its proper divisors (177045712).

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

145124144 is a wasteful number, since it uses less digits than its factorization.

145124144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 508 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 145124144 is about 12046.7482749496. The cubic root of 145124144 is about 525.5086758402.

Adding to 145124144 its reverse (441421541), we get a palindrome (586545685).

The spelling of 145124144 in words is "one hundred forty-five million, one hundred twenty-four thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 16 22 31 44 62 67 88 124 134 176 248 268 341 397 496 536 682 737 794 1072 1364 1474 1588 2077 2728 2948 3176 4154 4367 5456 5896 6352 8308 8734 11792 12307 16616 17468 22847 24614 26599 33232 34936 45694 49228 53198 69872 91388 98456 106396 135377 182776 196912 212792 270754 292589 365552 425584 541508 585178 824569 1083016 1170356 1649138 2166032 2340712 3298276 4681424 6596552 9070259 13193104 18140518 36281036 72562072 145124144