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220144308 = 223139191691
BaseRepresentation
bin11010001111100…
…10001010110100
3120100020111012220
431013302022310
5422324104213
633502242340
75312124066
oct1507621264
9510214186
10220144308
111032a174a
12618863b0
13367bb307
1421347736
15144d7e23
hexd1f22b4

220144308 has 48 divisors (see below), whose sum is σ = 520826880. Its totient is φ = 72367200.

The previous prime is 220144297. The next prime is 220144367. The reversal of 220144308 is 803441022.

220144308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318243 + ... + 318933.

It is an arithmetic number, because the mean of its divisors is an integer number (10850560).

Almost surely, 2220144308 is an apocalyptic number.

It is an amenable number.

220144308 is an abundant number, since it is smaller than the sum of its proper divisors (300682572).

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

220144308 is a wasteful number, since it uses less digits than its factorization.

220144308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 1026 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 220144308 is about 14837.2607984088. The cubic root of 220144308 is about 603.8130387821.

The spelling of 220144308 in words is "two hundred twenty million, one hundred forty-four thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 139 191 278 382 417 556 573 691 764 834 1146 1382 1668 2073 2292 2764 4146 8292 26549 53098 79647 96049 106196 131981 159294 192098 263962 288147 318588 384196 395943 527924 576294 791886 1152588 1583772 18345359 36690718 55036077 73381436 110072154 220144308