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1230221032 = 23937164117
BaseRepresentation
bin100100101010011…
…1010111011101000
310011201212200222221
41021110322323220
510004414033112
6322023523424
742325464145
oct11124727350
93151780887
101230221032
115814782a7
122a3bb9574
13167b45c51
14b95593cc
1573009e07
hex4953aee8

1230221032 has 16 divisors (see below), whose sum is σ = 2309140260. Its totient is φ = 614450304.

The previous prime is 1230221023. The next prime is 1230221077. The reversal of 1230221032 is 2301220321.

It can be written as a sum of positive squares in 2 ways, for example, as 1203118596 + 27102436 = 34686^2 + 5206^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1230220997 and 1230221015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74563 + ... + 89554.

Almost surely, 21230221032 is an apocalyptic number.

It is an amenable number.

1230221032 is a deficient number, since it is larger than the sum of its proper divisors (1078919228).

1230221032 is a wasteful number, since it uses less digits than its factorization.

1230221032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165060 (or 165056 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1230221032 is about 35074.5068675242. The cubic root of 1230221032 is about 1071.5054454692.

Adding to 1230221032 its reverse (2301220321), we get a palindrome (3531441353).

The spelling of 1230221032 in words is "one billion, two hundred thirty million, two hundred twenty-one thousand, thirty-two".

Divisors: 1 2 4 8 937 1874 3748 7496 164117 328234 656468 1312936 153777629 307555258 615110516 1230221032