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220387052 = 22197279679
BaseRepresentation
bin11010010001011…
…01011011101100
3120100200211012102
431020231123230
5422404341202
633511354232
75314154564
oct1510553354
9510624172
10220387052
11103448066
1261982978
1336874952
14213abda4
1514534d02
hexd22d6ec

220387052 has 12 divisors (see below), whose sum is σ = 387636480. Its totient is φ = 109633776.

The previous prime is 220387049. The next prime is 220387093. The reversal of 220387052 is 250783022.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139052 + ... + 140627.

It is an arithmetic number, because the mean of its divisors is an integer number (32303040).

Almost surely, 2220387052 is an apocalyptic number.

It is an amenable number.

220387052 is a deficient number, since it is larger than the sum of its proper divisors (167249428).

220387052 is a wasteful number, since it uses less digits than its factorization.

220387052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279880 (or 279878 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 220387052 is about 14845.4387607777. The cubic root of 220387052 is about 604.0348904600.

The spelling of 220387052 in words is "two hundred twenty million, three hundred eighty-seven thousand, fifty-two".

Divisors: 1 2 4 197 394 788 279679 559358 1118716 55096763 110193526 220387052