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122340430 = 25195312149
BaseRepresentation
bin1110100101011…
…00010001001110
322112012112112001
413102230101032
5222304343210
620050102514
73013606432
oct722542116
9275175461
10122340430
11630701a3
1234b7aa3a
131c4662b4
14123689c2
15ab1903a
hex74ac44e

122340430 has 32 divisors (see below), whose sum is σ = 236196000. Its totient is φ = 45482112.

The previous prime is 122340419. The next prime is 122340437. The reversal of 122340430 is 34043221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 122340398 and 122340407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122340437) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3996 + ... + 16144.

It is an arithmetic number, because the mean of its divisors is an integer number (7381125).

Almost surely, 2122340430 is an apocalyptic number.

122340430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122340430 is a deficient number, since it is larger than the sum of its proper divisors (113855570).

122340430 is a wasteful number, since it uses less digits than its factorization.

122340430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12228.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 122340430 is about 11060.7608237408. The cubic root of 122340430 is about 496.4284555517.

Adding to 122340430 its reverse (34043221), we get a palindrome (156383651).

The spelling of 122340430 in words is "one hundred twenty-two million, three hundred forty thousand, four hundred thirty".

Divisors: 1 2 5 10 19 38 53 95 106 190 265 530 1007 2014 5035 10070 12149 24298 60745 121490 230831 461662 643897 1154155 1287794 2308310 3219485 6438970 12234043 24468086 61170215 122340430