Search a number
-
+
8051888931892 = 2213264289585889
BaseRepresentation
bin111010100101011100111…
…1110101100010000110100
31001111202022222120020220121
41311022321332230100310
52023410232031310032
625042553043541324
71460505212443111
oct165127176542064
931452288506817
108051888931892
112624872431823
12aa061538a844
1346539cac0960
141db9dbbd5908
15de6ac57da97
hex752b9fac434

8051888931892 has 24 divisors (see below), whose sum is σ = 15174797073800. Its totient is φ = 3716236025856.

The previous prime is 8051888931869. The next prime is 8051888931929. The reversal of 8051888931892 is 2981398881508.

It can be written as a sum of positive squares in 4 ways, for example, as 1497500428176 + 6554388503716 = 1223724^2 + 2560154^2 .

It is a super-2 number, since 2×80518889318922 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13450084 + ... + 14035972.

Almost surely, 28051888931892 is an apocalyptic number.

It is an amenable number.

8051888931892 is a deficient number, since it is larger than the sum of its proper divisors (7122908141908).

8051888931892 is a wasteful number, since it uses less digits than its factorization.

8051888931892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850195 (or 850193 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 70.

The spelling of 8051888931892 in words is "eight trillion, fifty-one billion, eight hundred eighty-eight million, nine hundred thirty-one thousand, eight hundred ninety-two".

Divisors: 1 2 4 13 26 52 264289 528578 585889 1057156 1171778 2343556 3435757 6871514 7616557 13743028 15233114 30466228 154844017921 309688035842 619376071684 2012972232973 4025944465946 8051888931892