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15005200521025 = 5211134197258887
BaseRepresentation
bin1101101001011010101110…
…1001011001011101000001
31222010111001020001012221101
43122112223221121131001
53431321122313133100
651525143254454401
73106042566661351
oct332265351313501
958114036035841
1015005200521025
114865740566a40
121824137364401
1384aca4788860
1439c381452b61
151b04bdec986a
hexda5aba59741

15005200521025 has 24 divisors (see below), whose sum is σ = 21859324288704. Its totient is φ = 10073421326400.

The previous prime is 15005200521013. The next prime is 15005200521083. The reversal of 15005200521025 is 52012500250051.

It is not a de Polignac number, because 15005200521025 - 229 = 15004663650113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15005200520984 and 15005200521002.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2098625869 + ... + 2098633018.

It is an arithmetic number, because the mean of its divisors is an integer number (910805178696).

Almost surely, 215005200521025 is an apocalyptic number.

It is an amenable number.

15005200521025 is a deficient number, since it is larger than the sum of its proper divisors (6854123767679).

15005200521025 is a wasteful number, since it uses less digits than its factorization.

15005200521025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197258921 (or 4197258916 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

Adding to 15005200521025 its reverse (52012500250051), we get a palindrome (67017700771076).

The spelling of 15005200521025 in words is "fifteen trillion, five billion, two hundred million, five hundred twenty-one thousand, twenty-five".

Divisors: 1 5 11 13 25 55 65 143 275 325 715 3575 4197258887 20986294435 46169847757 54564365531 104931472175 230849238785 272821827655 600208020841 1154246193925 1364109138275 3001040104205 15005200521025