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64222260 = 22351779797
BaseRepresentation
bin1111010011111…
…1010000110100
311110211211101020
43310333100310
5112420103020
610212301140
71406610624
oct364772064
9143754336
1064222260
1133285153
12196117b0
13103c7a4b
14875a884
155988c40
hex3d3f434

64222260 has 96 divisors (see below), whose sum is σ = 193052160. Its totient is φ = 15894528.

The previous prime is 64222253. The next prime is 64222283. The reversal of 64222260 is 6222246.

It is a self number, because there is not a number n which added to its sum of digits gives 64222260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80182 + ... + 80978.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 264222260 is an apocalyptic number.

64222260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64222260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96526080).

64222260 is an abundant number, since it is smaller than the sum of its proper divisors (128829900).

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

64222260 is a wasteful number, since it uses less digits than its factorization.

64222260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 64222260 is about 8013.8792104698. The cubic root of 64222260 is about 400.4625066795.

The spelling of 64222260 in words is "sixty-four million, two hundred twenty-two thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 79 85 102 158 170 204 237 255 316 340 395 474 510 790 797 948 1020 1185 1343 1580 1594 2370 2391 2686 3188 3985 4029 4740 4782 5372 6715 7970 8058 9564 11955 13430 13549 15940 16116 20145 23910 26860 27098 40290 40647 47820 54196 62963 67745 80580 81294 125926 135490 162588 188889 203235 251852 270980 314815 377778 406470 629630 755556 812940 944445 1070371 1259260 1888890 2140742 3211113 3777780 4281484 5351855 6422226 10703710 12844452 16055565 21407420 32111130 64222260