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220342232 = 23112986341
BaseRepresentation
bin11010010001000…
…10011111011000
3120100121112201102
431020202133120
5422401422412
633510410532
75313610115
oct1510423730
9510545642
10220342232
11103417420
1261960a48
133685a426
142139990c
15145268c2
hexd2227d8

220342232 has 32 divisors (see below), whose sum is σ = 466246800. Its totient is φ = 96700800.

The previous prime is 220342217. The next prime is 220342273. The reversal of 220342232 is 232243022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40619 + ... + 45722.

Almost surely, 2220342232 is an apocalyptic number.

220342232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220342232 is an abundant number, since it is smaller than the sum of its proper divisors (245904568).

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

220342232 is a wasteful number, since it uses less digits than its factorization.

220342232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86387 (or 86383 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 220342232 is about 14843.9291294455. The cubic root of 220342232 is about 603.9939402635.

Adding to 220342232 its reverse (232243022), we get a palindrome (452585254).

The spelling of 220342232 in words is "two hundred twenty million, three hundred forty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 22 29 44 58 88 116 232 319 638 1276 2552 86341 172682 345364 690728 949751 1899502 2503889 3799004 5007778 7598008 10015556 20031112 27542779 55085558 110171116 220342232