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220584970 = 2525518647
BaseRepresentation
bin11010010010111…
…01110000001010
3120101001212200201
431021131300022
5422432204340
633515522414
75315640604
oct1511356012
9511055621
10220584970
11103572831
1261a5940a
1336913a68
1421420174
151457379a
hexd25dc0a

220584970 has 16 divisors (see below), whose sum is σ = 397254528. Its totient is φ = 88189200.

The previous prime is 220584953. The next prime is 220584989. The reversal of 220584970 is 79485022.

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, 21187 + ... + 29833.

It is an arithmetic number, because the mean of its divisors is an integer number (24828408).

Almost surely, 2220584970 is an apocalyptic number.

220584970 is a deficient number, since it is larger than the sum of its proper divisors (176669558).

220584970 is a wasteful number, since it uses less digits than its factorization.

220584970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 220584970 is about 14852.1032180631. The cubic root of 220584970 is about 604.2156536630.

It can be divided in two parts, 22058 and 4970, that added together give a triangular number (27028 = T232).

The spelling of 220584970 in words is "two hundred twenty million, five hundred eighty-four thousand, nine hundred seventy".

Divisors: 1 2 5 10 2551 5102 8647 12755 17294 25510 43235 86470 22058497 44116994 110292485 220584970