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258381192 = 23379136277
BaseRepresentation
bin11110110011010…
…01010110001000
3200000012010100210
433121221112020
51012121144232
641350001120
76255126636
oct1731512610
9600163323
10258381192
11122938683
12726461a0
13416b84a4
142645c356
1517a3c5cc
hexf669588

258381192 has 32 divisors (see below), whose sum is σ = 654134400. Its totient is φ = 85036224.

The previous prime is 258381173. The next prime is 258381197. The reversal of 258381192 is 291183852.

258381192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 258381192.

It is not an unprimeable number, because it can be changed into a prime (258381197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66243 + ... + 70034.

It is an arithmetic number, because the mean of its divisors is an integer number (20441700).

Almost surely, 2258381192 is an apocalyptic number.

It is an amenable number.

258381192 is an abundant number, since it is smaller than the sum of its proper divisors (395753208).

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

258381192 is a wasteful number, since it uses less digits than its factorization.

258381192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136365 (or 136361 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 258381192 is about 16074.2400131390. The cubic root of 258381192 is about 636.9230495551.

The spelling of 258381192 in words is "two hundred fifty-eight million, three hundred eighty-one thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 79 158 237 316 474 632 948 1896 136277 272554 408831 545108 817662 1090216 1635324 3270648 10765883 21531766 32297649 43063532 64595298 86127064 129190596 258381192