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258479423 = 3836611021
BaseRepresentation
bin11110110100000…
…01010100111111
3200000101010002222
433122001110333
51012132320143
641352035555
76256016216
oct1732012477
9600333088
10258479423
111229a5464
1272692bbb
1341721107
142648607d
1517a5b768
hexf68153f

258479423 has 8 divisors (see below), whose sum is σ = 259800576. Its totient is φ = 257162400.

The previous prime is 258479393. The next prime is 258479437. The reversal of 258479423 is 324974852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258479423 - 28 = 258479167 is a prime.

It is a super-2 number, since 2×2584794232 = 133623224228825858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258479443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252653 + ... + 253673.

It is an arithmetic number, because the mean of its divisors is an integer number (32475072).

Almost surely, 2258479423 is an apocalyptic number.

258479423 is a deficient number, since it is larger than the sum of its proper divisors (1321153).

258479423 is a wasteful number, since it uses less digits than its factorization.

258479423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065.

The product of its digits is 483840, while the sum is 44.

The square root of 258479423 is about 16077.2952638185. The cubic root of 258479423 is about 637.0037541664.

The spelling of 258479423 in words is "two hundred fifty-eight million, four hundred seventy-nine thousand, four hundred twenty-three".

Divisors: 1 383 661 1021 253163 391043 674881 258479423