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258216070 = 2573688801
BaseRepresentation
bin11110110010000…
…01000010000110
3122222212201212011
433121001002012
51012100403240
641342244434
76253541350
oct1731010206
9588781764
10258216070
11122835612
127258671a
134165b298
14264180d0
1517a086ea
hexf641086

258216070 has 16 divisors (see below), whose sum is σ = 531187488. Its totient is φ = 88531200.

The previous prime is 258216067. The next prime is 258216097. The reversal of 258216070 is 70612852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1844331 + ... + 1844470.

It is an arithmetic number, because the mean of its divisors is an integer number (33199218).

Almost surely, 2258216070 is an apocalyptic number.

258216070 is an abundant number, since it is smaller than the sum of its proper divisors (272971418).

258216070 is a wasteful number, since it uses less digits than its factorization.

258216070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688815.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 258216070 is about 16069.1029618955. The cubic root of 258216070 is about 636.7873425423.

The spelling of 258216070 in words is "two hundred fifty-eight million, two hundred sixteen thousand, seventy".

Divisors: 1 2 5 7 10 14 35 70 3688801 7377602 18444005 25821607 36888010 51643214 129108035 258216070