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102481296129 = 3217262772
BaseRepresentation
bin101111101110001011…
…1000111101100000001
3100210112002122020122100
41133130113013230001
53134340202434004
6115025041501013
710255403434002
oct1373427075401
9323462566570
10102481296129
113a50a024663
1217a40941769
1398828c06c4
144d628031a9
1529ebebd739
hex17dc5c7b01

102481296129 has 27 divisors (see below), whose sum is σ = 157273364937. Its totient is φ = 64291745664.

The previous prime is 102481296103. The next prime is 102481296131. The reversal of 102481296129 is 921692184201.

It is a happy number.

The square root of 102481296129 is 320127.

It is a perfect power (a square), and thus also a powerful number.

102481296129 is a `hidden beast` number, since 1 + 0 + 2 + 4 + 8 + 1 + 29 + 612 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 65778399729 + 36702896400 = 256473^2 + 191580^2 .

It is not a de Polignac number, because 102481296129 - 215 = 102481263361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102481296829) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16323339 + ... + 16329615.

Almost surely, 2102481296129 is an apocalyptic number.

102481296129 is the 320127-th square number.

102481296129 is the 160064-th centered octagonal number.

It is an amenable number.

102481296129 is a deficient number, since it is larger than the sum of its proper divisors (54792068808).

102481296129 is an frugal number, since it uses more digits than its factorization.

102481296129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12594 (or 6297 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 102481296129 in words is "one hundred two billion, four hundred eighty-one million, two hundred ninety-six thousand, one hundred twenty-nine".

Divisors: 1 3 9 17 51 153 289 867 2601 6277 18831 56493 106709 320127 960381 1814053 5442159 16326477 39400729 118202187 354606561 669812393 2009437179 6028311537 11386810681 34160432043 102481296129