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122202280 = 2353055057
BaseRepresentation
bin1110100100010…
…10100010101000
322111221112000101
413102022202220
5222240433110
620043115144
73012462604
oct722124250
9274845011
10122202280
1162a86422
1234b12ab4
131c418455
1412330504
15aadd13a
hex748a8a8

122202280 has 16 divisors (see below), whose sum is σ = 274955220. Its totient is φ = 48880896.

The previous prime is 122202277. The next prime is 122202293. The reversal of 122202280 is 82202221.

It can be written as a sum of positive squares in 2 ways, for example, as 103591684 + 18610596 = 10178^2 + 4314^2 .

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, 1527489 + ... + 1527568.

Almost surely, 2122202280 is an apocalyptic number.

122202280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122202280 is an abundant number, since it is smaller than the sum of its proper divisors (152752940).

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

122202280 is a wasteful number, since it uses less digits than its factorization.

122202280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055068 (or 3055064 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 122202280 is about 11054.5140101227. The cubic root of 122202280 is about 496.2415251912.

The spelling of 122202280 in words is "one hundred twenty-two million, two hundred two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 3055057 6110114 12220228 15275285 24440456 30550570 61101140 122202280