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2230121232 = 243215486953
BaseRepresentation
bin1000010011101100…
…1111001100010000
312202102100220012200
42010323033030100
514031402334412
61005143123200
7106156501113
oct20473171420
95672326180
102230121232
11a449330a9
12522a43500
13297049881
1417227c57a
15d0bbb9dc
hex84ecf310

2230121232 has 30 divisors (see below), whose sum is σ = 6241242462. Its totient is φ = 743373696.

The previous prime is 2230121213. The next prime is 2230121237. The reversal of 2230121232 is 2321210322.

It can be written as a sum of positive squares in only one way, i.e., 2082644496 + 147476736 = 45636^2 + 12144^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2230121237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7743333 + ... + 7743620.

Almost surely, 22230121232 is an apocalyptic number.

It is an amenable number.

2230121232 is an abundant number, since it is smaller than the sum of its proper divisors (4011121230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2230121232 is a wasteful number, since it uses less digits than its factorization.

2230121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15486967 (or 15486958 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2230121232 is about 47224.1594102002. The cubic root of 2230121232 is about 1306.5002308953.

Adding to 2230121232 its reverse (2321210322), we get a palindrome (4551331554).

The spelling of 2230121232 in words is "two billion, two hundred thirty million, one hundred twenty-one thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 15486953 30973906 46460859 61947812 92921718 123895624 139382577 185843436 247791248 278765154 371686872 557530308 743373744 1115060616 2230121232