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20880710123707 = 719334346963153
BaseRepresentation
bin1001011111101101010110…
…10011110100000010111011
32201221011202120221100020101
410233312223103310002323
510214102143242424312
6112224244340340231
74253403314403010
oct457665323640273
981834676840211
1020880710123707
116720506562305
1224129a36a4677
13b8607253a555
145228bb7ad707
1526324db68a57
hex12fdab4f40bb

20880710123707 has 16 divisors (see below), whose sum is σ = 25127165916160. Its totient is φ = 16950692230272.

The previous prime is 20880710123657. The next prime is 20880710123737. The reversal of 20880710123707 is 70732101708802.

It is a cyclic number.

It is not a de Polignac number, because 20880710123707 - 235 = 20846350385339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20880710123737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23036958 + ... + 23926195.

It is an arithmetic number, because the mean of its divisors is an integer number (1570447869760).

Almost surely, 220880710123707 is an apocalyptic number.

20880710123707 is a deficient number, since it is larger than the sum of its proper divisors (4246455792453).

20880710123707 is a wasteful number, since it uses less digits than its factorization.

20880710123707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46966522.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 20880710123707 in words is "twenty trillion, eight hundred eighty billion, seven hundred ten million, one hundred twenty-three thousand, seven hundred seven".

Divisors: 1 7 19 133 3343 23401 63517 444619 46963153 328742071 892299907 6246099349 156997820479 1098984743353 2982958589101 20880710123707