Search a number
-
+
145901484 = 22324798461
BaseRepresentation
bin10001011001001…
…00011110101100
3101011112120012200
420230210132230
5244322321414
622251101500
73421066521
oct1054443654
9334476180
10145901484
11753a2a43
1240a41890
13242c5551
141553d148
15cc20109
hex8b247ac

145901484 has 36 divisors (see below), whose sum is σ = 369620160. Its totient is φ = 48526560.

The previous prime is 145901479. The next prime is 145901491. The reversal of 145901484 is 484109541.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13014 + ... + 21474.

Almost surely, 2145901484 is an apocalyptic number.

It is an amenable number.

145901484 is an abundant number, since it is smaller than the sum of its proper divisors (223718676).

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

145901484 is a wasteful number, since it uses less digits than its factorization.

145901484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8950 (or 8945 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 145901484 is about 12078.9686645839. The cubic root of 145901484 is about 526.4452802009.

The spelling of 145901484 in words is "one hundred forty-five million, nine hundred one thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 479 958 1437 1916 2874 4311 5748 8461 8622 16922 17244 25383 33844 50766 76149 101532 152298 304596 4052819 8105638 12158457 16211276 24316914 36475371 48633828 72950742 145901484