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807272030172881 = 7139871898705421
BaseRepresentation
bin1011011110001101011010101…
…0100110000111011011010001
310220212022110012210020210200002
42313203112222212013123101
51321302321104211013011
611540531352334135345
7332016323315302220
oct26743265246073321
93825273183223602
10807272030172881
11214249166548829
127665a889651555
132885a56c63a860
141034c263692cb7
15634dee8863c3b
hex2de35aa9876d1

807272030172881 has 16 divisors (see below), whose sum is σ = 993666231710208. Its totient is φ = 638656019668800.

The previous prime is 807272030172809. The next prime is 807272030172913. The reversal of 807272030172881 is 188271030272708.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-807272030172881 is a prime.

It is a super-2 number, since 2×8072720301728812 (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (807272030372881) 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, 448454450 + ... + 450250971.

It is an arithmetic number, because the mean of its divisors is an integer number (62104139481888).

Almost surely, 2807272030172881 is an apocalyptic number.

It is an amenable number.

807272030172881 is a deficient number, since it is larger than the sum of its proper divisors (186394201537327).

807272030172881 is a wasteful number, since it uses less digits than its factorization.

807272030172881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898715312.

The product of its (nonzero) digits is 4214784, while the sum is 56.

The spelling of 807272030172881 in words is "eight hundred seven trillion, two hundred seventy-two billion, thirty million, one hundred seventy-two thousand, eight hundred eighty-one".

Divisors: 1 7 13 91 9871 69097 128323 898261 898705421 6290937947 11683170473 81782193311 8871121210691 62097848474837 115324575738983 807272030172881