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308297010025 = 521110492
BaseRepresentation
bin1000111110001111110…
…11110000101101101001
31002110202202012210210201
410133013323300231221
520022343013310100
6353344002512201
731162613230054
oct4370773605551
91073682183721
10308297010025
11109825696784
124b900065661
13230c2a638b4
1410cc9041a9b
158045cc736a
hex47c7ef0b69

308297010025 has 9 divisors (see below), whose sum is σ = 382291734981. Its totient is φ = 246635387040.

The previous prime is 308297009971. The next prime is 308297010031. The reversal of 308297010025 is 520010792803.

The square root of 308297010025 is 555245.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1863907929 + 306433102096 = 43173^2 + 553564^2 .

It is not a de Polignac number, because 308297010025 - 231 = 306149526377 is a prime.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 2720701 + ... + 2831749.

Almost surely, 2308297010025 is an apocalyptic number.

308297010025 is the 555245-th square number.

308297010025 is the 277623-rd centered octagonal number.

It is an amenable number.

308297010025 is a deficient number, since it is larger than the sum of its proper divisors (73994724956).

308297010025 is an frugal number, since it uses more digits than its factorization.

308297010025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222108 (or 111054 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 308297010025 in words is "three hundred eight billion, two hundred ninety-seven million, ten thousand, twenty-five".

Divisors: 1 5 25 111049 555245 2776225 12331880401 61659402005 308297010025