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887486464225 = 52292732892
BaseRepresentation
bin11001110101000100101…
…00001100000011100001
310010211202110100121020101
430322202110030003201
5104020033013323400
61515412230542401
7121055512322644
oct14724224140341
93124673317211
10887486464225
11312420a77199
12124001507a01
13658c711047a
1430d514cba5b
1518143b6c56a
hexcea250c0e1

887486464225 has 81 divisors (see below), whose sum is σ = 1168695974433. Its totient is φ = 668519470080.

The previous prime is 887486464219. The next prime is 887486464229. The reversal of 887486464225 is 522464684788.

The square root of 887486464225 is 942065.

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

It can be written as a sum of positive squares in 40 ways, for example, as 764493168609 + 122993295616 = 874353^2 + 350704^2 .

It is not a de Polignac number, because 887486464225 - 29 = 887486463713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (887486464229) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 9971757981 + ... + 9971758069.

Almost surely, 2887486464225 is an apocalyptic number.

887486464225 is the 942065-th square number.

887486464225 is the 471033-rd centered octagonal number.

It is an amenable number.

887486464225 is a deficient number, since it is larger than the sum of its proper divisors (281209510208).

887486464225 is an frugal number, since it uses more digits than its factorization.

887486464225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 196 counting only the distinct ones).

The product of its digits is 165150720, while the sum is 64.

Multiplying 887486464225 by its sum of digits (64), we get a square (56799133710400 = 75365202).

The spelling of 887486464225 in words is "eight hundred eighty-seven billion, four hundred eighty-six million, four hundred sixty-four thousand, two hundred twenty-five".

Divisors: 1 5 25 29 73 89 145 365 445 725 841 1825 2117 2225 2581 4205 5329 6497 7921 10585 12905 21025 26645 32485 39605 52925 61393 64525 74849 133225 154541 162425 188413 198025 229709 306965 374245 474281 578233 772705 942065 1148545 1534825 1871225 2371405 2891165 3863525 4481689 4710325 5463977 5742725 6661561 11857025 13754149 14455825 16768757 22408445 27319885 33307805 42211009 68770745 83843785 112042225 136599425 166539025 211055045 343853725 398870321 419218925 486293953 1055275225 1224119261 1994351605 2431469765 6120596305 9971758025 12157348825 30602981525 35499458569 177497292845 887486464225