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145454210 = 25111777783
BaseRepresentation
bin10001010101101…
…11010010000010
3101010200211122222
420222313102002
5244214013320
622233331042
73414224516
oct1052672202
9333624588
10145454210
11751179a0
1240866a82
1324199aa5
1415464146
15cb82825
hex8ab7482

145454210 has 32 divisors (see below), whose sum is σ = 302424192. Its totient is φ = 49780480.

The previous prime is 145454209. The next prime is 145454269. The reversal of 145454210 is 12454541.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145454210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37022 + ... + 40761.

It is an arithmetic number, because the mean of its divisors is an integer number (9450756).

Almost surely, 2145454210 is an apocalyptic number.

145454210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145454210 is an abundant number, since it is smaller than the sum of its proper divisors (156969982).

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

145454210 is a wasteful number, since it uses less digits than its factorization.

145454210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77818.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 145454210 is about 12060.4398758918. The cubic root of 145454210 is about 525.9067745744.

The spelling of 145454210 in words is "one hundred forty-five million, four hundred fifty-four thousand, two hundred ten".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 935 1870 77783 155566 388915 777830 855613 1322311 1711226 2644622 4278065 6611555 8556130 13223110 14545421 29090842 72727105 145454210