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310202020420 = 22583186868687
BaseRepresentation
bin1001000001110010111…
…10110011001001000100
31002122200111211100210021
410200321132303021010
520040243204123140
6354301013504524
731261044445165
oct4407136631104
91078614740707
10310202020420
1110a612a54236
1250152042144
132333762cb96
141102a05176c
158108174b4a
hex48397b3244

310202020420 has 24 divisors (see below), whose sum is σ = 659272731264. Its totient is φ = 122585858016.

The previous prime is 310202020391. The next prime is 310202020439. The reversal of 310202020420 is 24020202013.

It is a junction number, because it is equal to n+sod(n) for n = 310202020394 and 310202020403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93432684 + ... + 93436003.

It is an arithmetic number, because the mean of its divisors is an integer number (27469697136).

Almost surely, 2310202020420 is an apocalyptic number.

It is an amenable number.

310202020420 is an abundant number, since it is smaller than the sum of its proper divisors (349070710844).

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

310202020420 is a wasteful number, since it uses less digits than its factorization.

310202020420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186868779 (or 186868777 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 310202020420 its reverse (24020202013), we get a palindrome (334222222433).

The spelling of 310202020420 in words is "three hundred ten billion, two hundred two million, twenty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 186868687 373737374 747474748 934343435 1868686870 3737373740 15510101021 31020202042 62040404084 77550505105 155101010210 310202020420