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230477409 = 3225608601
BaseRepresentation
bin11011011110011…
…00111001100001
3121001200110120100
431233030321201
5433000234114
634511533013
75466011541
oct1557147141
9531613510
10230477409
1110910a0a8
126522a169
1338998686
1422877321
1515379909
hexdbcce61

230477409 has 6 divisors (see below), whose sum is σ = 332911826. Its totient is φ = 153651600.

The previous prime is 230477393. The next prime is 230477417. The reversal of 230477409 is 904774032.

It can be written as a sum of positive squares in only one way, i.e., 223203600 + 7273809 = 14940^2 + 2697^2 .

It is not a de Polignac number, because 230477409 - 24 = 230477393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230477909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12804292 + ... + 12804309.

Almost surely, 2230477409 is an apocalyptic number.

It is an amenable number.

230477409 is a deficient number, since it is larger than the sum of its proper divisors (102434417).

230477409 is a wasteful number, since it uses less digits than its factorization.

230477409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25608607 (or 25608604 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 230477409 is about 15181.4824374960. The cubic root of 230477409 is about 613.1161947630.

The spelling of 230477409 in words is "two hundred thirty million, four hundred seventy-seven thousand, four hundred nine".

Divisors: 1 3 9 25608601 76825803 230477409