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258010032 = 24376773157
BaseRepresentation
bin11110110000011…
…10101110110000
3122222111021020010
433120032232300
51012022310112
641334014520
76252022560
oct1730165660
9588437203
10258010032
11122704835
12724a7440
13415b8577
14263a2da0
15179b763c
hexf60ebb0

258010032 has 160 divisors (see below), whose sum is σ = 788695552. Its totient is φ = 71165952.

The previous prime is 258010031. The next prime is 258010033. The reversal of 258010032 is 230010852.

It is an interprime number because it is at equal distance from previous prime (258010031) and next prime (258010033).

It is a super-2 number, since 2×2580100322 = 133138353225282048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 258009990 and 258010008.

It is not an unprimeable number, because it can be changed into a prime (258010031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1643298 + ... + 1643454.

Almost surely, 2258010032 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 258010032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394347776).

258010032 is an abundant number, since it is smaller than the sum of its proper divisors (530685520).

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

258010032 is a wasteful number, since it uses less digits than its factorization.

258010032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 258010032 is about 16062.6906836931. The cubic root of 258010032 is about 636.6179271857.

Adding to 258010032 its reverse (230010852), we get a palindrome (488020884).

The spelling of 258010032 in words is "two hundred fifty-eight million, ten thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 67 73 84 112 134 146 157 168 201 219 268 292 314 336 402 438 469 471 511 536 584 628 804 876 938 942 1022 1072 1099 1168 1256 1407 1533 1608 1752 1876 1884 2044 2198 2512 2814 3066 3216 3297 3504 3752 3768 4088 4396 4891 5628 6132 6594 7504 7536 8176 8792 9782 10519 11256 11461 12264 13188 14673 17584 19564 21038 22512 22922 24528 26376 29346 31557 34237 34383 39128 42076 45844 52752 58692 63114 68474 68766 73633 78256 80227 84152 91688 102711 117384 126228 136948 137532 147266 160454 168304 183376 205422 220899 234768 240681 252456 273896 275064 294532 320908 410844 441798 481362 504912 547792 550128 589064 641816 767887 821688 883596 962724 1178128 1283632 1535774 1643376 1767192 1925448 2303661 3071548 3534384 3850896 4607322 5375209 6143096 9214644 10750418 12286192 16125627 18429288 21500836 32251254 36858576 43001672 64502508 86003344 129005016 258010032