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69250554025 = 52526312
BaseRepresentation
bin100000001111110100…
…1111001100010101001
320121202012010122021021
41000133221321202221
52113311120212100
651451355412441
75001043665652
oct1003751714251
9217665118237
1069250554025
1127407150234
1211507a54121
1366b80b50b3
1434cd28a529
151c04922a1a
hex101fa798a9

69250554025 has 9 divisors (see below), whose sum is σ = 85872318583. Its totient is φ = 55399390600.

The previous prime is 69250554013. The next prime is 69250554047. The reversal of 69250554025 is 52045505296.

The square root of 69250554025 is 263155.

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

It can be written as a sum of positive squares in only one way, i.e., 24930199449 + 44320354576 = 157893^2 + 210524^2 .

It is a de Polignac number, because none of the positive numbers 2k-69250554025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1289460 + ... + 1342090.

Almost surely, 269250554025 is an apocalyptic number.

69250554025 is the 263155-th square number.

69250554025 is the 131578-th centered octagonal number.

It is an amenable number.

69250554025 is a deficient number, since it is larger than the sum of its proper divisors (16621764558).

69250554025 is an frugal number, since it uses more digits than its factorization.

69250554025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105272 (or 52636 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 69250554025 in words is "sixty-nine billion, two hundred fifty million, five hundred fifty-four thousand, twenty-five".

Divisors: 1 5 25 52631 263155 1315775 2770022161 13850110805 69250554025