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122313030031220 = 22571945982342117
BaseRepresentation
bin11011110011111000111000…
…101101001101011101110100
3121001002000022100212002012112
4123303320320231031131310
5112012434041141444340
61112045455201510152
734522552623101030
oct3363707055153564
9531060270762175
10122313030031220
1135a77734838636
1211875102342358
1353330b9177892
14222bda73a71c0
15e21998bc7065
hex6f3e38b4d774

122313030031220 has 48 divisors (see below), whose sum is σ = 309001339032960. Its totient is φ = 39728743588224.

The previous prime is 122313030031217. The next prime is 122313030031307. The reversal of 122313030031220 is 22130030313221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22991168399 + ... + 22991173718.

It is an arithmetic number, because the mean of its divisors is an integer number (6437527896520).

Almost surely, 2122313030031220 is an apocalyptic number.

122313030031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122313030031220 is an abundant number, since it is smaller than the sum of its proper divisors (186688309001740).

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

122313030031220 is a wasteful number, since it uses less digits than its factorization.

122313030031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45982342152 (or 45982342150 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 122313030031220 its reverse (22130030313221), we get a palindrome (144443060344441).

The spelling of 122313030031220 in words is "one hundred twenty-two trillion, three hundred thirteen billion, thirty million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 532 665 1330 2660 45982342117 91964684234 183929368468 229911710585 321876394819 459823421170 643752789638 873664500223 919646842340 1287505579276 1609381974095 1747329000446 3218763948190 3494658000892 4368322501115 6115651501561 6437527896380 8736645002230 12231303003122 17473290004460 24462606006244 30578257507805 61156515015610 122313030031220