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427221364 = 22106805341
BaseRepresentation
bin11001011101101…
…110000101110100
31002202220002112111
4121131232011310
51333332040424
6110220500404
713405215223
oct3135560564
91082802474
10427221364
111aa178809
12bb0aa704
136a68290b
1440a4ccba
152778e194
hex1976e174

427221364 has 6 divisors (see below), whose sum is σ = 747637394. Its totient is φ = 213610680.

The previous prime is 427221349. The next prime is 427221367. The reversal of 427221364 is 463122724.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 274896400 + 152324964 = 16580^2 + 12342^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427221367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53402667 + ... + 53402674.

Almost surely, 2427221364 is an apocalyptic number.

It is an amenable number.

427221364 is a deficient number, since it is larger than the sum of its proper divisors (320416030).

427221364 is a wasteful number, since it uses less digits than its factorization.

427221364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106805345 (or 106805343 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 427221364 is about 20669.3339031523. Note that the first 3 decimals coincide. The cubic root of 427221364 is about 753.1549256866.

The spelling of 427221364 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, three hundred sixty-four".

Divisors: 1 2 4 106805341 213610682 427221364