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210495149120 = 265657797341
BaseRepresentation
bin1100010000001001111…
…1010001010001000000
3202010022202202111112002
43010002133101101000
511422043224232440
6240411121323132
721131160150254
oct3040237212100
9663282674462
10210495149120
11812a802a063
12349664964a8
1316b07783799
14a28bcd6264
15571ea3d115
hex31027d1440

210495149120 has 28 divisors (see below), whose sum is σ = 501241574604. Its totient is φ = 84198059520.

The previous prime is 210495149119. The next prime is 210495149141. The reversal of 210495149120 is 21941594012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91988463616 + 118506685504 = 303296^2 + 344248^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 328898351 + ... + 328898990.

Almost surely, 2210495149120 is an apocalyptic number.

210495149120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210495149120 is an abundant number, since it is smaller than the sum of its proper divisors (290746425484).

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

210495149120 is an equidigital number, since it uses as much as digits as its factorization.

210495149120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657797358 (or 657797348 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 210495149120 in words is "two hundred ten billion, four hundred ninety-five million, one hundred forty-nine thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 657797341 1315594682 2631189364 3288986705 5262378728 6577973410 10524757456 13155946820 21049514912 26311893640 42099029824 52623787280 105247574560 210495149120