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122313120020 = 225713232921957
BaseRepresentation
bin111000111101001101…
…1100001100100010100
3102200201012201021122022
41301322123201210110
54000444124320040
6132105002352312
711560014236360
oct1617233414424
9380635637568
10122313120020
1147966627463
121b8564bb698
13b6c34a4240
145cc462c2a0
1532ad0b96b5
hex1c7a6e1914

122313120020 has 96 divisors (see below), whose sum is σ = 329877370368. Its totient is φ = 37027026432.

The previous prime is 122313120019. The next prime is 122313120031. The reversal of 122313120020 is 20021313221.

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, 1419119 + ... + 1502838.

It is an arithmetic number, because the mean of its divisors is an integer number (3436222608).

Almost surely, 2122313120020 is an apocalyptic number.

122313120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122313120020 is an abundant number, since it is smaller than the sum of its proper divisors (207564250348).

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

122313120020 is a wasteful number, since it uses less digits than its factorization.

122313120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922009 (or 2922007 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 122313120020 its reverse (20021313221), we get a palindrome (142334433241).

The spelling of 122313120020 in words is "one hundred twenty-two billion, three hundred thirteen million, one hundred twenty thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 23 26 28 35 46 52 65 70 91 92 115 130 140 161 182 230 260 299 322 364 455 460 598 644 805 910 1196 1495 1610 1820 2093 2990 3220 4186 5980 8372 10465 20930 41860 2921957 5843914 11687828 14609785 20453699 29219570 37985441 40907398 58439140 67205011 75970882 81814796 102268495 134410022 151941764 189927205 204536990 265898087 268820044 336025055 379854410 409073980 470435077 531796174 672050110 759708820 873665143 940870154 1063592348 1329490435 1344100220 1747330286 1881740308 2352175385 2658980870 3494660572 4368325715 4704350770 5317961740 6115656001 8736651430 9408701540 12231312002 17473302860 24462624004 30578280005 61156560010 122313120020