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122225238 = 2329770003
BaseRepresentation
bin1110100100100…
…00001001010110
322111222200111200
413102100021112
5222242201423
620043413330
73012616542
oct722201126
9274880450
10122225238
1162aa16a3
1234b24246
131c425a35
1412338a22
15aae4d43
hex7490256

122225238 has 24 divisors (see below), whose sum is σ = 267555288. Its totient is φ = 40321152.

The previous prime is 122225231. The next prime is 122225249. The reversal of 122225238 is 832522221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122225231) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 33256 + ... + 36747.

It is an arithmetic number, because the mean of its divisors is an integer number (11148137).

Almost surely, 2122225238 is an apocalyptic number.

122225238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

122225238 is an abundant number, since it is smaller than the sum of its proper divisors (145330050).

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

122225238 is a wasteful number, since it uses less digits than its factorization.

122225238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70108 (or 70105 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 122225238 is about 11055.5523606919. The cubic root of 122225238 is about 496.2725993511.

Adding to 122225238 its reverse (832522221), we get a palindrome (954747459).

The spelling of 122225238 in words is "one hundred twenty-two million, two hundred twenty-five thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 97 194 291 582 873 1746 70003 140006 210009 420018 630027 1260054 6790291 13580582 20370873 40741746 61112619 122225238