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258493368 = 23372296719
BaseRepresentation
bin11110110100001…
…00101110111000
3200000101211020110
433122010232320
51012133241433
641352224320
76256104660
oct1732045670
9600354213
10258493368
11122a04991
127269b0a0
1341727573
142648b1a0
1517a60963
hexf684bb8

258493368 has 64 divisors (see below), whose sum is σ = 741888000. Its totient is φ = 73521792.

The previous prime is 258493331. The next prime is 258493379. The reversal of 258493368 is 863394852.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35113 + ... + 41831.

It is an arithmetic number, because the mean of its divisors is an integer number (11592000).

Almost surely, 2258493368 is an apocalyptic number.

258493368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258493368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370944000).

258493368 is an abundant number, since it is smaller than the sum of its proper divisors (483394632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258493368 is a wasteful number, since it uses less digits than its factorization.

258493368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6964 (or 6960 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 258493368 is about 16077.7289441015. The cubic root of 258493368 is about 637.0152094401.

The spelling of 258493368 in words is "two hundred fifty-eight million, four hundred ninety-three thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 229 458 687 916 1374 1603 1832 2748 3206 4809 5496 6412 6719 9618 12824 13438 19236 20157 26876 38472 40314 47033 53752 80628 94066 141099 161256 188132 282198 376264 564396 1128792 1538651 3077302 4615953 6154604 9231906 10770557 12309208 18463812 21541114 32311671 36927624 43082228 64623342 86164456 129246684 258493368