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122360220 = 22355171481
BaseRepresentation
bin1110100101100…
…01000110011100
322112020112200000
413102301012130
5222311011340
620050334300
73014021223
oct722610634
9275215600
10122360220
1163084054
1234b8a390
131c4722c8
1412371cba
15ab1ed30
hex74b119c

122360220 has 144 divisors (see below), whose sum is σ = 407822688. Its totient is φ = 30689280.

The previous prime is 122360219. The next prime is 122360233. The reversal of 122360220 is 22063221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122360193 and 122360202.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 81880 + ... + 83360.

It is an arithmetic number, because the mean of its divisors is an integer number (2832102).

Almost surely, 2122360220 is an apocalyptic number.

122360220 is a gapful number since it is divisible by the number (10) 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 122360220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203911344).

122360220 is an abundant number, since it is smaller than the sum of its proper divisors (285462468).

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

122360220 is a wasteful number, since it uses less digits than its factorization.

122360220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 122360220 is about 11061.6553914864. The cubic root of 122360220 is about 496.4552218176.

The spelling of 122360220 in words is "one hundred twenty-two million, three hundred sixty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 17 18 20 27 30 34 36 45 51 54 60 68 81 85 90 102 108 135 153 162 170 180 204 243 255 270 306 324 340 405 459 486 510 540 612 765 810 918 972 1020 1215 1377 1481 1530 1620 1836 2295 2430 2754 2962 3060 4131 4443 4590 4860 5508 5924 6885 7405 8262 8886 9180 13329 13770 14810 16524 17772 20655 22215 25177 26658 27540 29620 39987 41310 44430 50354 53316 66645 75531 79974 82620 88860 100708 119961 125885 133290 151062 159948 199935 226593 239922 251770 266580 302124 359883 377655 399870 453186 479844 503540 599805 679779 719766 755310 799740 906372 1132965 1199610 1359558 1439532 1510620 1799415 2039337 2265930 2399220 2719116 3398895 3598830 4078674 4531860 6118011 6797790 7197660 8157348 10196685 12236022 13595580 20393370 24472044 30590055 40786740 61180110 122360220