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102630546421 = 1323833331249
BaseRepresentation
bin101111110010101000…
…0011101101111110101
3100210220111110221112221
41133211100131233311
53140141404441141
6115051532442341
710262165152024
oct1374520355765
9323814427487
10102630546421
113a5862a4607
1217a829193b1
1398a77b92a0
144d785748bb
152a0a150bd1
hex17e541dbf5

102630546421 has 8 divisors (see below), whose sum is σ = 110530175000. Its totient is φ = 94731628032.

The previous prime is 102630546391. The next prime is 102630546457. The reversal of 102630546421 is 124645036201.

It can be written as a sum of positive squares in 4 ways, for example, as 3500023921 + 99130522500 = 59161^2 + 314850^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102630546421 - 29 = 102630545909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102630546721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144205 + ... + 475453.

It is an arithmetic number, because the mean of its divisors is an integer number (13816271875).

Almost surely, 2102630546421 is an apocalyptic number.

It is an amenable number.

102630546421 is a deficient number, since it is larger than the sum of its proper divisors (7899628579).

102630546421 is a wasteful number, since it uses less digits than its factorization.

102630546421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355095.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 102630546421 in words is "one hundred two billion, six hundred thirty million, five hundred forty-six thousand, four hundred twenty-one".

Divisors: 1 13 23833 309829 331249 4306237 7894657417 102630546421