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258390027 = 3372359441
BaseRepresentation
bin11110110011010…
…11100000001011
3200000012120111000
433121223200023
51012121440102
641350110043
76255164460
oct1731534013
9600176430
10258390027
11122944285
127264b323
13416bc50c
1426461667
1517a4001c
hexf66b80b

258390027 has 32 divisors (see below), whose sum is σ = 456514560. Its totient is φ = 141229440.

The previous prime is 258390007. The next prime is 258390043. The reversal of 258390027 is 720093852.

It is a happy number.

It is not a de Polignac number, because 258390027 - 27 = 258389899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258389973 and 258390000.

It is not an unprimeable number, because it can be changed into a prime (258390007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25374 + ... + 34067.

It is an arithmetic number, because the mean of its divisors is an integer number (14266080).

Almost surely, 2258390027 is an apocalyptic number.

258390027 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

258390027 is a deficient number, since it is larger than the sum of its proper divisors (198124533).

258390027 is a wasteful number, since it uses less digits than its factorization.

258390027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59480 (or 59474 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 258390027 is about 16074.5148293813. The cubic root of 258390027 is about 636.9303090502.

The spelling of 258390027 in words is "two hundred fifty-eight million, three hundred ninety thousand, twenty-seven".

Divisors: 1 3 7 9 21 23 27 63 69 161 189 207 483 621 1449 4347 59441 178323 416087 534969 1248261 1367143 1604907 3744783 4101429 9570001 11234349 12304287 28710003 36912861 86130009 258390027