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122442580 = 22513470933
BaseRepresentation
bin1110100110001…
…01001101010100
322112101201122101
413103011031110
5222321130310
620052211444
73014513311
oct723051524
9275351571
10122442580
116312aa17
1235009b84
131c4a0940
1412393d08
15ab3943a
hex74c5354

122442580 has 24 divisors (see below), whose sum is σ = 276909192. Its totient is φ = 45209472.

The previous prime is 122442571. The next prime is 122442599. The reversal of 122442580 is 85244221.

It can be written as a sum of positive squares in 4 ways, for example, as 163216 + 122279364 = 404^2 + 11058^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 235207 + ... + 235726.

It is an arithmetic number, because the mean of its divisors is an integer number (11537883).

Almost surely, 2122442580 is an apocalyptic number.

122442580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122442580 is an abundant number, since it is smaller than the sum of its proper divisors (154466612).

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

122442580 is a wasteful number, since it uses less digits than its factorization.

122442580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470955 (or 470953 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 122442580 is about 11065.3775353578. The cubic root of 122442580 is about 496.5665839407.

The spelling of 122442580 in words is "one hundred twenty-two million, four hundred forty-two thousand, five hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 470933 941866 1883732 2354665 4709330 6122129 9418660 12244258 24488516 30610645 61221290 122442580