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1215242000235 = 3251671128714327
BaseRepresentation
bin10001101011110010000…
…100010101011101101011
311022011202022012221120200
4101223302010111131223
5124402303423001420
62330135141323243
7153540554365344
oct21536204253553
94264668187520
101215242000235
114294214784aa
12177632106523
138a79b305163
1442b649450cb
1521927da3b90
hex11af211576b

1215242000235 has 48 divisors (see below), whose sum is σ = 2119368416256. Its totient is φ = 644146012224.

The previous prime is 1215242000227. The next prime is 1215242000239. The reversal of 1215242000235 is 5320002425121.

1215242000235 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 2 + 420 + 0 + 0 + 235 = 666.

It is not a de Polignac number, because 1215242000235 - 23 = 1215242000227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1215242000199 and 1215242000208.

It is not an unprimeable number, because it can be changed into a prime (1215242000239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84814642 + ... + 84828968.

It is an arithmetic number, because the mean of its divisors is an integer number (44153508672).

Almost surely, 21215242000235 is an apocalyptic number.

1215242000235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1215242000235 is a deficient number, since it is larger than the sum of its proper divisors (904126416021).

1215242000235 is a wasteful number, since it uses less digits than its factorization.

1215242000235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25792 (or 25789 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 1215242000235 its reverse (5320002425121), we get a palindrome (6535244425356).

The spelling of 1215242000235 in words is "one trillion, two hundred fifteen billion, two hundred forty-two million, two hundred thirty-five", and thus it is an aban number.

Divisors: 1 3 5 9 15 45 167 501 835 1503 2505 7515 11287 14327 33861 42981 56435 71635 101583 128943 169305 214905 507915 644715 1884929 2392609 5654787 7177827 9424645 11963045 16964361 21533481 28273935 35889135 84821805 107667405 161708849 485126547 808544245 1455379641 2425632735 7276898205 27005377783 81016133349 135026888915 243048400047 405080666745 1215242000235