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6870720390369 = 3111911396974219
BaseRepresentation
bin110001111111011011011…
…0110010010010011100001
3220022211112022120100120020
41203332312312102103201
51400032213404442434
622340210530504053
71306251566500263
oct143766666222341
926284468510506
106870720390369
1122099465a5160
1292b712435029
133aaba1a821b4
1419a78a6d1b33
15bdacac39849
hex63fb6d924e1

6870720390369 has 32 divisors (see below), whose sum is σ = 10612858636800. Its totient is φ = 3910000469760.

The previous prime is 6870720390323. The next prime is 6870720390433. The reversal of 6870720390369 is 9630930270786.

It is not a de Polignac number, because 6870720390369 - 28 = 6870720390113 is a prime.

It is a super-2 number, since 2×68707203903692 (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6870720392369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48416259 + ... + 48557960.

It is an arithmetic number, because the mean of its divisors is an integer number (331651832400).

Almost surely, 26870720390369 is an apocalyptic number.

It is an amenable number.

6870720390369 is a deficient number, since it is larger than the sum of its proper divisors (3742138246431).

6870720390369 is a wasteful number, since it uses less digits than its factorization.

6870720390369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96974365.

The product of its (nonzero) digits is 20575296, while the sum is 60.

The spelling of 6870720390369 in words is "six trillion, eight hundred seventy billion, seven hundred twenty million, three hundred ninety thousand, three hundred sixty-nine".

Divisors: 1 3 11 19 33 57 113 209 339 627 1243 2147 3729 6441 23617 70851 96974219 290922657 1066716409 1842510161 3200149227 5527530483 10958086747 20267611771 32874260241 60802835313 120538954217 208203648193 361616862651 624610944579 2290240130123 6870720390369