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258414920 = 2358817333
BaseRepresentation
bin11110110011100…
…01100101001000
3200000020211121222
433121301211020
51012123234140
641350421212
76255330161
oct1731614510
9600224558
10258414920
11122960a55
1272661808
13416ca94a
142646a768
1517a475b5
hexf671948

258414920 has 32 divisors (see below), whose sum is σ = 582172920. Its totient is φ = 103234560.

The previous prime is 258414899. The next prime is 258414929. The reversal of 258414920 is 29414852.

258414920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 77404804 + 181010116 = 8798^2 + 13454^2 .

It is not an unprimeable number, because it can be changed into a prime (258414929) 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, 31574 + ... + 38906.

Almost surely, 2258414920 is an apocalyptic number.

258414920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258414920 is an abundant number, since it is smaller than the sum of its proper divisors (323758000).

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

258414920 is a wasteful number, since it uses less digits than its factorization.

258414920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8225 (or 8221 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 258414920 is about 16075.2891109305. The cubic root of 258414920 is about 636.9507621061.

The spelling of 258414920 in words is "two hundred fifty-eight million, four hundred fourteen thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 881 1762 3524 4405 7048 7333 8810 14666 17620 29332 35240 36665 58664 73330 146660 293320 6460373 12920746 25841492 32301865 51682984 64603730 129207460 258414920