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145130404 = 2245779393
BaseRepresentation
bin10001010011010…
…00001110100100
3101010002101111011
420221220032210
5244123133104
622222352004
73411405466
oct1051501644
9333071434
10145130404
1174a16691
124072b604
13240b55a3
14153bc136
15cb1b904
hex8a683a4

145130404 has 12 divisors (see below), whose sum is σ = 254537164. Its totient is φ = 72405504.

The previous prime is 145130387. The next prime is 145130423. The reversal of 145130404 is 404031541.

It can be written as a sum of positive squares in 2 ways, for example, as 111513600 + 33616804 = 10560^2 + 5798^2 .

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 3 ways as a sum of consecutive naturals, for example, 37869 + ... + 41524.

Almost surely, 2145130404 is an apocalyptic number.

It is an amenable number.

145130404 is a deficient number, since it is larger than the sum of its proper divisors (109406760).

145130404 is a wasteful number, since it uses less digits than its factorization.

145130404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79854 (or 79852 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 145130404 is about 12047.0080932985. The cubic root of 145130404 is about 525.5162317550.

Adding to 145130404 its reverse (404031541), we get a palindrome (549161945).

The spelling of 145130404 in words is "one hundred forty-five million, one hundred thirty thousand, four hundred four".

Divisors: 1 2 4 457 914 1828 79393 158786 317572 36282601 72565202 145130404