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221327090 = 2535961651
BaseRepresentation
bin11010011000100…
…10111011110010
3120102110120200122
431030102323302
5423124431330
633543450242
75325151325
oct1514227362
9512416618
10221327090
11103a2a356
1262156982
1336b1379a
14215747bc
151466d5e5
hexd312ef2

221327090 has 16 divisors (see below), whose sum is σ = 399504960. Its totient is φ = 88282800.

The previous prime is 221327087. The next prime is 221327173. The reversal of 221327090 is 90723122.

221327090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27236 + ... + 34415.

It is an arithmetic number, because the mean of its divisors is an integer number (24969060).

Almost surely, 2221327090 is an apocalyptic number.

221327090 is a deficient number, since it is larger than the sum of its proper divisors (178177870).

221327090 is a wasteful number, since it uses less digits than its factorization.

221327090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62017.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 221327090 is about 14877.0659069589. The cubic root of 221327090 is about 604.8924882381.

The spelling of 221327090 in words is "two hundred twenty-one million, three hundred twenty-seven thousand, ninety".

Divisors: 1 2 5 10 359 718 1795 3590 61651 123302 308255 616510 22132709 44265418 110663545 221327090