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258243852 = 22346392
BaseRepresentation
bin11110110010001…
…11110100001100
3122222221010222010
433121013310030
51012102300402
641343021220
76254015346
oct1731076414
9588833863
10258243852
11122854479
127259a810
134166ab19
1426424296
1517a11a6c
hexf647d0c

258243852 has 18 divisors (see below), whose sum is σ = 602698908. Its totient is φ = 86062728.

The previous prime is 258243833. The next prime is 258243859. The reversal of 258243852 is 258342852.

It is a self number, because there is not a number n which added to its sum of digits gives 258243852.

It is not an unprimeable number, because it can be changed into a prime (258243859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53349 + ... + 57987.

Almost surely, 2258243852 is an apocalyptic number.

It is an amenable number.

258243852 is an abundant number, since it is smaller than the sum of its proper divisors (344455056).

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

258243852 is an frugal number, since it uses more digits than its factorization.

258243852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9285 (or 4644 counting only the distinct ones).

The product of its digits is 153600, while the sum is 39.

The square root of 258243852 is about 16069.9673926240. The cubic root of 258243852 is about 636.8101794782.

The spelling of 258243852 in words is "two hundred fifty-eight million, two hundred forty-three thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 4639 9278 13917 18556 27834 55668 21520321 43040642 64560963 86081284 129121926 258243852