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121210132232 = 2372309209521
BaseRepresentation
bin111000011100010101…
…1111101011100001000
3102120212100020200211202
41300320223331130020
53441214243212412
6131403321443332
711520462060500
oct1607053753410
9376770220752
10121210132232
114744aa61402
121b5a9040548
13b578b18647
145c1bd52a00
1532463433c2
hex1c38afd708

121210132232 has 24 divisors (see below), whose sum is σ = 264374141310. Its totient is φ = 51947199360.

The previous prime is 121210132229. The next prime is 121210132279. The reversal of 121210132232 is 232231012121.

It can be written as a sum of positive squares in only one way, i.e., 105959364196 + 15250768036 = 325514^2 + 123494^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154604369 + ... + 154605152.

Almost surely, 2121210132232 is an apocalyptic number.

It is an amenable number.

121210132232 is an abundant number, since it is smaller than the sum of its proper divisors (143164009078).

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

121210132232 is a wasteful number, since it uses less digits than its factorization.

121210132232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309209541 (or 309209530 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121210132232 its reverse (232231012121), we get a palindrome (353441144353).

The spelling of 121210132232 in words is "one hundred twenty-one billion, two hundred ten million, one hundred thirty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 309209521 618419042 1236838084 2164466647 2473676168 4328933294 8657866588 15151266529 17315733176 30302533058 60605066116 121210132232