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145904848 = 2431436841
BaseRepresentation
bin10001011001001…
…01010011010000
3101011112201211021
420230211103100
5244322423343
622251125224
73421112365
oct1054452320
9334481737
10145904848
11753a5521
1240a43814
13242c6c3b
141554046c
15cc210ed
hex8b254d0

145904848 has 40 divisors (see below), whose sum is σ = 298639616. Its totient is φ = 68947200.

The previous prime is 145904789. The next prime is 145904851. The reversal of 145904848 is 848409541.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 17908 + ... + 24748.

Almost surely, 2145904848 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 145904848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149319808).

145904848 is an abundant number, since it is smaller than the sum of its proper divisors (152734768).

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

145904848 is a wasteful number, since it uses less digits than its factorization.

145904848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923 (or 6917 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 145904848 is about 12079.1079140804. The cubic root of 145904848 is about 526.4493261920.

The spelling of 145904848 in words is "one hundred forty-five million, nine hundred four thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 31 43 62 86 124 172 248 344 496 688 1333 2666 5332 6841 10664 13682 21328 27364 54728 109456 212071 294163 424142 588326 848284 1176652 1696568 2353304 3393136 4706608 9119053 18238106 36476212 72952424 145904848