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258835380 = 223533113033
BaseRepresentation
bin11110110110110…
…00001110110100
3200001001012101120
433123120032310
51012230213010
641403423540
76262031046
oct1733301664
9601035346
10258835380
11123118941
1272824bb0
134181713b
1426539a96
1517acbe70
hexf6d83b4

258835380 has 48 divisors (see below), whose sum is σ = 726984384. Its totient is φ = 68808960.

The previous prime is 258835351. The next prime is 258835391. The reversal of 258835380 is 83538852.

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, 13344 + ... + 26376.

It is an arithmetic number, because the mean of its divisors is an integer number (15145508).

Almost surely, 2258835380 is an apocalyptic number.

258835380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258835380 is an abundant number, since it is smaller than the sum of its proper divisors (468149004).

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

258835380 is a wasteful number, since it uses less digits than its factorization.

258835380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13376 (or 13374 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 258835380 is about 16088.3616319375. The cubic root of 258835380 is about 637.2960300942.

The spelling of 258835380 in words is "two hundred fifty-eight million, eight hundred thirty-five thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 331 662 993 1324 1655 1986 3310 3972 4965 6620 9930 13033 19860 26066 39099 52132 65165 78198 130330 156396 195495 260660 390990 781980 4313923 8627846 12941769 17255692 21569615 25883538 43139230 51767076 64708845 86278460 129417690 258835380