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122432530 = 25112394657
BaseRepresentation
bin1110100110000…
…10110000010010
322112101012212011
413103002300102
5222320320110
620052053134
73014442103
oct723026022
9275335764
10122432530
1163123410
12350041aa
131c4991ac
14123903aa
15ab3648a
hex74c2c12

122432530 has 32 divisors (see below), whose sum is σ = 241470720. Its totient is φ = 44325120.

The previous prime is 122432501. The next prime is 122432533. The reversal of 122432530 is 35234221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (122432533) 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 15 ways as a sum of consecutive naturals, for example, 23962 + ... + 28618.

It is an arithmetic number, because the mean of its divisors is an integer number (7545960).

Almost surely, 2122432530 is an apocalyptic number.

122432530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122432530 is a deficient number, since it is larger than the sum of its proper divisors (119038190).

122432530 is a wasteful number, since it uses less digits than its factorization.

122432530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4914.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 122432530 is about 11064.9234068745. The cubic root of 122432530 is about 496.5529976248.

Adding to 122432530 its reverse (35234221), we get a palindrome (157666751).

The spelling of 122432530 in words is "one hundred twenty-two million, four hundred thirty-two thousand, five hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 239 478 1195 2390 2629 4657 5258 9314 13145 23285 26290 46570 51227 102454 256135 512270 1113023 2226046 5565115 11130230 12243253 24486506 61216265 122432530