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1232142205 = 57144724329
BaseRepresentation
bin100100101110000…
…1111111101111101
310011212111022100111
41021130033331331
510010412022310
6322133030021
742351015220
oct11134177575
93155438314
101232142205
1158256a748
122a4785311
13168369538
14b98d95b7
157328928a
hex4970ff7d

1232142205 has 16 divisors (see below), whose sum is σ = 1691032320. Its totient is φ = 844278912.

The previous prime is 1232142193. The next prime is 1232142211. The reversal of 1232142205 is 5022412321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1232142205 - 29 = 1232141693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38481 + ... + 62809.

It is an arithmetic number, because the mean of its divisors is an integer number (105689520).

Almost surely, 21232142205 is an apocalyptic number.

It is an amenable number.

1232142205 is a deficient number, since it is larger than the sum of its proper divisors (458890115).

1232142205 is a wasteful number, since it uses less digits than its factorization.

1232142205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25788.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1232142205 is about 35101.8832115885. The cubic root of 1232142205 is about 1072.0629270465.

Adding to 1232142205 its reverse (5022412321), we get a palindrome (6254554526).

The spelling of 1232142205 in words is "one billion, two hundred thirty-two million, one hundred forty-two thousand, two hundred five".

Divisors: 1 5 7 35 1447 7235 10129 24329 50645 121645 170303 851515 35204063 176020315 246428441 1232142205