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427771630 = 251113389769
BaseRepresentation
bin11001011111110…
…100011011101110
31002210221001100201
4121133310123232
51334002143010
6110240344114
713412666416
oct3137643356
91083831321
10427771630
111aa514180
12bb31503a
136a816210
1440b53646
152784c23a
hex197f46ee

427771630 has 64 divisors (see below), whose sum is σ = 908107200. Its totient is φ = 143032320.

The previous prime is 427771621. The next prime is 427771633. The reversal of 427771630 is 36177724.

It is a self number, because there is not a number n which added to its sum of digits gives 427771630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427771633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555886 + ... + 556654.

It is an arithmetic number, because the mean of its divisors is an integer number (14189175).

Almost surely, 2427771630 is an apocalyptic number.

427771630 is an abundant number, since it is smaller than the sum of its proper divisors (480335570).

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

427771630 is a wasteful number, since it uses less digits than its factorization.

427771630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 427771630 is about 20682.6407888355. The cubic root of 427771630 is about 753.4781443408.

The spelling of 427771630 in words is "four hundred twenty-seven million, seven hundred seventy-one thousand, six hundred thirty".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 286 389 715 769 778 1430 1538 1945 3845 3890 4279 5057 7690 8459 8558 9997 10114 16918 19994 21395 25285 42295 42790 49985 50570 55627 84590 99970 109967 111254 219934 278135 299141 549835 556270 598282 1099670 1495705 2991410 3290551 3888833 6581102 7777666 16452755 19444165 32905510 38888330 42777163 85554326 213885815 427771630