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258006348 = 2232171034093
BaseRepresentation
bin11110110000011…
…01110101001100
3122222111002011200
433120031311030
51012022200343
641333545500
76252006045
oct1730156514
9588432150
10258006348
11122701a96
12724a5290
13415b69a2
14263a18cc
15179b64d3
hexf60dd4c

258006348 has 72 divisors (see below), whose sum is σ = 697421088. Its totient is φ = 80137728.

The previous prime is 258006319. The next prime is 258006349. The reversal of 258006348 is 843600852.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (258006349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60990 + ... + 65082.

It is an arithmetic number, because the mean of its divisors is an integer number (9686404).

Almost surely, 2258006348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258006348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348710544).

258006348 is an abundant number, since it is smaller than the sum of its proper divisors (439414740).

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

258006348 is a wasteful number, since it uses less digits than its factorization.

258006348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223 (or 4218 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 258006348 is about 16062.5760076023. The cubic root of 258006348 is about 636.6148971852.

The spelling of 258006348 in words is "two hundred fifty-eight million, six thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 103 153 204 206 306 309 412 612 618 927 1236 1751 1854 3502 3708 4093 5253 7004 8186 10506 12279 15759 16372 21012 24558 31518 36837 49116 63036 69581 73674 139162 147348 208743 278324 417486 421579 626229 834972 843158 1252458 1264737 1686316 2504916 2529474 3794211 5058948 7166843 7588422 14333686 15176844 21500529 28667372 43001058 64501587 86002116 129003174 258006348