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488166663445 = 5172337831601
BaseRepresentation
bin1110001101010010000…
…00000010010100010101
31201200001011200221011021
413012221000002110111
530444231131212240
61012132145441141
750161140114016
oct7065100022425
91650034627137
10488166663445
1117903739a60a
127a73a0401b1
133705969a996
14198ad7cb00d
15ca71d3454a
hex71a9002515

488166663445 has 12 divisors (see below), whose sum is σ = 622285810884. Its totient is φ = 367560780800.

The previous prime is 488166663437. The next prime is 488166663449. The reversal of 488166663445 is 544366661884.

It can be written as a sum of positive squares in 6 ways, for example, as 73730713156 + 414435950289 = 271534^2 + 643767^2 .

It is not a de Polignac number, because 488166663445 - 23 = 488166663437 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 (488166663449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168914356 + ... + 168917245.

It is an arithmetic number, because the mean of its divisors is an integer number (51857150907).

Almost surely, 2488166663445 is an apocalyptic number.

It is an amenable number.

488166663445 is a deficient number, since it is larger than the sum of its proper divisors (134119147439).

488166663445 is a wasteful number, since it uses less digits than its factorization.

488166663445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337831640 (or 337831623 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 61.

The spelling of 488166663445 in words is "four hundred eighty-eight billion, one hundred sixty-six million, six hundred sixty-three thousand, four hundred forty-five".

Divisors: 1 5 17 85 289 1445 337831601 1689158005 5743137217 28715686085 97633332689 488166663445