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293021929225 = 521082632
BaseRepresentation
bin1000100001110010111…
…01111100111100001001
31001000100012110022012101
410100321131330330021
514300102103213400
6342340140513401
730112233205564
oct4207135747411
91030305408171
10293021929225
111032a7270463
124895854b861
132182a23324c
141027a4934db
15794ec7756a
hex443977cf09

293021929225 has 9 divisors (see below), whose sum is σ = 363350548423. Its totient is φ = 234415378120.

The previous prime is 293021929199. The next prime is 293021929229. The reversal of 293021929225 is 522929120392.

The square root of 293021929225 is 541315.

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., 105487894521 + 187534034704 = 324789^2 + 433052^2 .

It is not a de Polignac number, because 293021929225 - 29 = 293021928713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (293021929229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2652444 + ... + 2760706.

Almost surely, 2293021929225 is an apocalyptic number.

293021929225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

293021929225 is the 541315-th square number.

293021929225 is the 270658-th centered octagonal number.

It is an amenable number.

293021929225 is a deficient number, since it is larger than the sum of its proper divisors (70328619198).

293021929225 is an frugal number, since it uses more digits than its factorization.

293021929225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216536 (or 108268 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 293021929225 in words is "two hundred ninety-three billion, twenty-one million, nine hundred twenty-nine thousand, two hundred twenty-five".

Divisors: 1 5 25 108263 541315 2706575 11720877169 58604385845 293021929225