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258378060 = 22354306301
BaseRepresentation
bin11110110011010…
…00100101001100
3200000011222001210
433121220211030
51012121044220
641345534420
76255114543
oct1731504514
9600158053
10258378060
11122936296
1272644410
13416b6c35
142645b15a
1517a3b6e0
hexf66894c

258378060 has 24 divisors (see below), whose sum is σ = 723458736. Its totient is φ = 68900800.

The previous prime is 258378049. The next prime is 258378061. The reversal of 258378060 is 60873852.

258378060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (258378061) 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, 2153091 + ... + 2153210.

It is an arithmetic number, because the mean of its divisors is an integer number (30144114).

Almost surely, 2258378060 is an apocalyptic number.

258378060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258378060 is an abundant number, since it is smaller than the sum of its proper divisors (465080676).

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

258378060 is a wasteful number, since it uses less digits than its factorization.

258378060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306313 (or 4306311 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 258378060 is about 16074.1425898864. The cubic root of 258378060 is about 636.9204760305.

The spelling of 258378060 in words is "two hundred fifty-eight million, three hundred seventy-eight thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4306301 8612602 12918903 17225204 21531505 25837806 43063010 51675612 64594515 86126020 129189030 258378060