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123667788296980 = 225241100072563927
BaseRepresentation
bin11100000111100110100110…
…100101110111001100010100
3121012212112011210112122120201
4130013212212211313030110
5112202133112301000410
61115004110405110244
735022463036255204
oct3407464645671424
9535775153478521
10123667788296980
113644a23a532314
1211a537900b8384
135400a8ca632b5
1422777a51ba404
15e46d3a09883a
hex7079a6977314

123667788296980 has 48 divisors (see below), whose sum is σ = 260806120033536. Its totient is φ = 49256915627520.

The previous prime is 123667788296963. The next prime is 123667788297023. The reversal of 123667788296980 is 89692887766321.

It is a junction number, because it is equal to n+sod(n) for n = 123667788296894 and 123667788296903.

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, 46951777 + ... + 49515703.

It is an arithmetic number, because the mean of its divisors is an integer number (5433460834032).

Almost surely, 2123667788296980 is an apocalyptic number.

123667788296980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123667788296980 is an abundant number, since it is smaller than the sum of its proper divisors (137138331736556).

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

123667788296980 is a wasteful number, since it uses less digits than its factorization.

123667788296980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574184 (or 2574182 counting only the distinct ones).

The product of its (nonzero) digits is 5267275776, while the sum is 82.

The spelling of 123667788296980 in words is "one hundred twenty-three trillion, six hundred sixty-seven billion, seven hundred eighty-eight million, two hundred ninety-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 241 482 964 1205 2410 4820 10007 20014 40028 50035 100070 200140 2411687 2563927 4823374 5127854 9646748 10255708 12058435 12819635 24116870 25639270 48233740 51278540 617906407 1235812814 2471625628 3089532035 6179064070 12358128140 25657217489 51314434978 102628869956 128286087445 256572174890 513144349780 6183389414849 12366778829698 24733557659396 30916947074245 61833894148490 123667788296980