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146230540 = 22517334219
BaseRepresentation
bin10001011011101…
…00110100001100
3101012011021120221
420231310310030
5244413334130
622302121124
73423640051
oct1055646414
9335137527
10146230540
11755a8195
1240b801a4
13243ac261
14155c7028
15cc8787a
hex8b74d0c

146230540 has 24 divisors (see below), whose sum is σ = 307334160. Its totient is φ = 58444608.

The previous prime is 146230529. The next prime is 146230543. The reversal of 146230540 is 45032641.

It is not an unprimeable number, because it can be changed into a prime (146230543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 32551 + ... + 36769.

It is an arithmetic number, because the mean of its divisors is an integer number (12805590).

Almost surely, 2146230540 is an apocalyptic number.

146230540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146230540 is an abundant number, since it is smaller than the sum of its proper divisors (161103620).

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

146230540 is a wasteful number, since it uses less digits than its factorization.

146230540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961 (or 5959 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 146230540 is about 12092.5820237036. The cubic root of 146230540 is about 526.8407523283.

The spelling of 146230540 in words is "one hundred forty-six million, two hundred thirty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 1733 3466 4219 6932 8438 8665 16876 17330 21095 34660 42190 84380 7311527 14623054 29246108 36557635 73115270 146230540