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258129552 = 24323613833
BaseRepresentation
bin11110110001010…
…11111010010000
3122222201100011210
433120223322100
51012040121202
641340340120
76253031202
oct1730537220
9588640153
10258129552
1112278660a
1272544640
134162aaa5
14263d4772
15179dcc6c
hexf62be90

258129552 has 80 divisors (see below), whose sum is σ = 707419008. Its totient is φ = 80931840.

The previous prime is 258129541. The next prime is 258129569. The reversal of 258129552 is 255921852.

It is a self number, because there is not a number n which added to its sum of digits gives 258129552.

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, 65428 + ... + 69260.

Almost surely, 2258129552 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 258129552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353709504).

258129552 is an abundant number, since it is smaller than the sum of its proper divisors (449289456).

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

258129552 is a wasteful number, since it uses less digits than its factorization.

258129552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928 (or 3922 counting only the distinct ones).

The product of its digits is 72000, while the sum is 39.

The square root of 258129552 is about 16066.4106756923. The cubic root of 258129552 is about 636.7162138403.

The spelling of 258129552 in words is "two hundred fifty-eight million, one hundred twenty-nine thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 23 24 46 48 61 69 92 122 138 183 184 244 276 366 368 488 552 732 976 1104 1403 1464 2806 2928 3833 4209 5612 7666 8418 11224 11499 15332 16836 22448 22998 30664 33672 45996 61328 67344 88159 91992 176318 183984 233813 264477 352636 467626 528954 701439 705272 935252 1057908 1402878 1410544 1870504 2115816 2805756 3741008 4231632 5377699 5611512 10755398 11223024 16133097 21510796 32266194 43021592 64532388 86043184 129064776 258129552