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122420323 = 6713713337
BaseRepresentation
bin1110100101111…
…11110001100011
322112100121010001
413102333301203
5222314422243
620051520431
73014361364
oct722776143
9275317101
10122420323
1163115223
1234bb9117
131c49377c
1412389b6b
15ab32a4d
hex74bfc63

122420323 has 8 divisors (see below), whose sum is σ = 125163792. Its totient is φ = 119703936.

The previous prime is 122420321. The next prime is 122420357. The reversal of 122420323 is 323024221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122420323 - 21 = 122420321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122420323.

It is not an unprimeable number, because it can be changed into a prime (122420321) by changing a digit.

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, 2511 + ... + 15847.

It is an arithmetic number, because the mean of its divisors is an integer number (15645474).

Almost surely, 2122420323 is an apocalyptic number.

122420323 is a deficient number, since it is larger than the sum of its proper divisors (2743469).

122420323 is a wasteful number, since it uses less digits than its factorization.

122420323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13541.

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

The square root of 122420323 is about 11064.3717851489. The cubic root of 122420323 is about 496.5364943205.

Adding to 122420323 its reverse (323024221), we get a palindrome (445444544).

The spelling of 122420323 in words is "one hundred twenty-two million, four hundred twenty thousand, three hundred twenty-three".

Divisors: 1 67 137 9179 13337 893579 1827169 122420323