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122040401 = 7195711607
BaseRepresentation
bin1110100011000…
…11000001010001
322111122021221212
413101203001101
5222220243101
620035425505
73011216630
oct721430121
9274567855
10122040401
116298583a
1234a55295
131c38c872
14122cb517
15aaaa1bb
hex7463051

122040401 has 16 divisors (see below), whose sum is σ = 147164160. Its totient is φ = 98865360.

The previous prime is 122040389. The next prime is 122040431. The reversal of 122040401 is 104040221.

It is not a de Polignac number, because 122040401 - 26 = 122040337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122040431) 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, 75140 + ... + 76746.

It is an arithmetic number, because the mean of its divisors is an integer number (9197760).

Almost surely, 2122040401 is an apocalyptic number.

It is an amenable number.

122040401 is a deficient number, since it is larger than the sum of its proper divisors (25123759).

122040401 is a wasteful number, since it uses less digits than its factorization.

122040401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 122040401 is about 11047.1897331403. The cubic root of 122040401 is about 496.0223078438.

Adding to 122040401 its reverse (104040221), we get a palindrome (226080622).

The spelling of 122040401 in words is "one hundred twenty-two million, forty thousand, four hundred one".

Divisors: 1 7 19 133 571 1607 3997 10849 11249 30533 75943 213731 917597 6423179 17434343 122040401