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1230206663215 = 5246041332643
BaseRepresentation
bin10001111001101110000…
…001111111101000101111
311100121101012212120222201
4101321232001333220233
5130123430401210330
62341052114122331
7154610445050365
oct21715601775057
94317335776881
101230206663215
11434800654272
1217a5098803a7
138c01472ac1a
14437841ab635
1522001a37eca
hex11e6e07fa2f

1230206663215 has 4 divisors (see below), whose sum is σ = 1476247995864. Its totient is φ = 984165330568.

The previous prime is 1230206663201. The next prime is 1230206663237. The reversal of 1230206663215 is 5123666020321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1230206663215 - 213 = 1230206655023 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 123020666317 + ... + 123020666326.

It is an arithmetic number, because the mean of its divisors is an integer number (369061998966).

Almost surely, 21230206663215 is an apocalyptic number.

1230206663215 is a deficient number, since it is larger than the sum of its proper divisors (246041332649).

1230206663215 is an equidigital number, since it uses as much as digits as its factorization.

1230206663215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246041332648.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 1230206663215 in words is "one trillion, two hundred thirty billion, two hundred six million, six hundred sixty-three thousand, two hundred fifteen".

Divisors: 1 5 246041332643 1230206663215