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85881322117420 = 22520533303763311
BaseRepresentation
bin10011100001101111001101…
…101100101001100100101100
3102021002011201000000111011121
4103201233031230221210230
542224034421430224140
6502353200144430324
724042502136225044
oct2341571554514454
9367064630014147
1085881322117420
11254010784608a5
1297704610183a4
1338bc75cbb7a4b
14172c96cc78724
159dde84a2964a
hex4e1bcdb2992c

85881322117420 has 48 divisors (see below), whose sum is σ = 180446935713408. Its totient is φ = 34334214370560.

The previous prime is 85881322117411. The next prime is 85881322117439. The reversal of 85881322117420 is 2471122318858.

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, 1356467565 + ... + 1356530875.

It is an arithmetic number, because the mean of its divisors is an integer number (3759311160696).

Almost surely, 285881322117420 is an apocalyptic number.

It is an amenable number.

85881322117420 is an abundant number, since it is smaller than the sum of its proper divisors (94565613595988).

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

85881322117420 is a wasteful number, since it uses less digits than its factorization.

85881322117420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98410 (or 98408 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 52.

The spelling of 85881322117420 in words is "eighty-five trillion, eight hundred eighty-one billion, three hundred twenty-two million, one hundred seventeen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2053 4106 8212 10265 20530 33037 41060 63311 66074 126622 132148 165185 253244 316555 330370 633110 660740 1266220 67824961 129977483 135649922 259954966 271299844 339124805 519909932 649887415 678249610 1299774830 1356499220 2091605507 2599549660 4183211014 8366422028 10458027535 20916055070 41832110140 4294066105871 8588132211742 17176264423484 21470330529355 42940661058710 85881322117420