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122348540 = 22524172531
BaseRepresentation
bin1110100101011…
…10001111111100
322112012221122102
413102232033330
5222310123130
620050204232
73013642166
oct722561774
9275187572
10122348540
11630762a6
1234b83678
131c469bb2
141236b936
15ab1b645
hex74ae3fc

122348540 has 24 divisors (see below), whose sum is σ = 257139792. Its totient is φ = 48899840.

The previous prime is 122348521. The next prime is 122348563. The reversal of 122348540 is 45843221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47075 + ... + 49605.

It is an arithmetic number, because the mean of its divisors is an integer number (10714158).

Almost surely, 2122348540 is an apocalyptic number.

122348540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122348540 is an abundant number, since it is smaller than the sum of its proper divisors (134791252).

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

122348540 is a wasteful number, since it uses less digits than its factorization.

122348540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957 (or 4955 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 122348540 is about 11061.1274289740. The cubic root of 122348540 is about 496.4394247949.

The spelling of 122348540 in words is "one hundred twenty-two million, three hundred forty-eight thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 2417 2531 4834 5062 9668 10124 12085 12655 24170 25310 48340 50620 6117427 12234854 24469708 30587135 61174270 122348540