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354221230 = 25113220193
BaseRepresentation
bin10101000111001…
…111110010101110
3220200112022011211
4111013033302232
51211140034410
655052105034
711530554646
oct2507176256
9820468154
10354221230
11171a48720
129a76517a
135850367c
1435089526
152116e68a
hex151cfcae

354221230 has 16 divisors (see below), whose sum is σ = 695561904. Its totient is φ = 128807680.

The previous prime is 354221173. The next prime is 354221233. The reversal of 354221230 is 32122453.

It is a super-3 number, since 3×3542212303 (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354221233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1609987 + ... + 1610206.

It is an arithmetic number, because the mean of its divisors is an integer number (43472619).

Almost surely, 2354221230 is an apocalyptic number.

354221230 is a deficient number, since it is larger than the sum of its proper divisors (341340674).

354221230 is a wasteful number, since it uses less digits than its factorization.

354221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220211.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 354221230 is about 18820.7659249033. The cubic root of 354221230 is about 707.5517274170.

Adding to 354221230 its reverse (32122453), we get a palindrome (386343683).

The spelling of 354221230 in words is "three hundred fifty-four million, two hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 3220193 6440386 16100965 32201930 35422123 70844246 177110615 354221230