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145445510 = 25710931901
BaseRepresentation
bin10001010101101…
…01001010000110
3101010200101201202
420222311022012
5244213224020
622233222502
73414160250
oct1052651206
9333611652
10145445510
1175111401
1240861a32
1324195b42
1415460cd0
15cb7ee75
hex8ab5286

145445510 has 32 divisors (see below), whose sum is σ = 299633472. Its totient is φ = 49795200.

The previous prime is 145445497. The next prime is 145445519. The reversal of 145445510 is 15544541.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145445519) 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, 75560 + ... + 77460.

It is an arithmetic number, because the mean of its divisors is an integer number (9363546).

Almost surely, 2145445510 is an apocalyptic number.

145445510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145445510 is an abundant number, since it is smaller than the sum of its proper divisors (154187962).

145445510 is a wasteful number, since it uses less digits than its factorization.

145445510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 145445510 is about 12060.0791871364. The cubic root of 145445510 is about 525.8962890748.

It can be divided in two parts, 1454 and 45510, that added together give a palindrome (46964).

The spelling of 145445510 in words is "one hundred forty-five million, four hundred forty-five thousand, five hundred ten".

Divisors: 1 2 5 7 10 14 35 70 1093 1901 2186 3802 5465 7651 9505 10930 13307 15302 19010 26614 38255 66535 76510 133070 2077793 4155586 10388965 14544551 20777930 29089102 72722755 145445510