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258873312 = 25331372351
BaseRepresentation
bin11110110111000…
…01011111100000
3200001010010102110
433123201133200
51012232421222
641404315320
76262246455
oct1733413740
9601103373
10258873312
11123144395
1272842b40
134182b499
142654982c
1517ad830c
hexf6e17e0

258873312 has 96 divisors (see below), whose sum is σ = 720728064. Its totient is φ = 81216000.

The previous prime is 258873311. The next prime is 258873319. The reversal of 258873312 is 213378852.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258873311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108937 + ... + 111287.

It is an arithmetic number, because the mean of its divisors is an integer number (7507584).

Almost surely, 2258873312 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 258873312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360364032).

258873312 is an abundant number, since it is smaller than the sum of its proper divisors (461854752).

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

258873312 is a wasteful number, since it uses less digits than its factorization.

258873312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432 (or 2424 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 258873312 is about 16089.5404533504. The cubic root of 258873312 is about 637.3271602179.

The spelling of 258873312 in words is "two hundred fifty-eight million, eight hundred seventy-three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 37 48 62 74 93 96 111 124 148 186 222 248 296 372 444 496 592 744 888 992 1147 1184 1488 1776 2294 2351 2976 3441 3552 4588 4702 6882 7053 9176 9404 13764 14106 18352 18808 27528 28212 36704 37616 55056 56424 72881 75232 86987 110112 112848 145762 173974 218643 225696 260961 291524 347948 437286 521922 583048 695896 874572 1043844 1166096 1391792 1749144 2087688 2332192 2696597 2783584 3498288 4175376 5393194 6996576 8089791 8350752 10786388 16179582 21572776 32359164 43145552 64718328 86291104 129436656 258873312