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122232001 = 149820349
BaseRepresentation
bin1110100100100…
…01110011000001
322112000000210011
413102101303001
5222242411001
620043504521
73012645343
oct722216301
9275000704
10122232001
1162aa6791
1234b28141
131c428b38
141233b293
15aae6d51
hex7491cc1

122232001 has 4 divisors (see below), whose sum is σ = 123052500. Its totient is φ = 121411504.

The previous prime is 122231957. The next prime is 122232017. The reversal of 122232001 is 100232221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23030401 + 99201600 = 4799^2 + 9960^2 .

It is a cyclic number.

It is not a de Polignac number, because 122232001 - 29 = 122231489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122232041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410026 + ... + 410323.

It is an arithmetic number, because the mean of its divisors is an integer number (30763125).

Almost surely, 2122232001 is an apocalyptic number.

It is an amenable number.

122232001 is a deficient number, since it is larger than the sum of its proper divisors (820499).

122232001 is an equidigital number, since it uses as much as digits as its factorization.

122232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820498.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 122232001 is about 11055.8582208710. The cubic root of 122232001 is about 496.2817524789.

Adding to 122232001 its reverse (100232221), we get a palindrome (222464222).

The spelling of 122232001 in words is "one hundred twenty-two million, two hundred thirty-two thousand, one".

Divisors: 1 149 820349 122232001