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16986931206 = 237404450743
BaseRepresentation
bin11111101001000000…
…00000000000000110
31121211211220111220020
433310200000000012
5234242123244311
611445332520010
71140644350530
oct176440000006
947754814806
1016986931206
117227752923
123360a80006
1317a9398aab
14b7207a850
15696494c06
hex3f4800006

16986931206 has 16 divisors (see below), whose sum is σ = 38827271424. Its totient is φ = 4853408904.

The previous prime is 16986931189. The next prime is 16986931207. The reversal of 16986931206 is 60213968961.

It is a super-2 number, since 2×169869312062 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16986931207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202225330 + ... + 202225413.

It is an arithmetic number, because the mean of its divisors is an integer number (2426704464).

Almost surely, 216986931206 is an apocalyptic number.

16986931206 is an abundant number, since it is smaller than the sum of its proper divisors (21840340218).

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

16986931206 is a wasteful number, since it uses less digits than its factorization.

16986931206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404450755.

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 16986931206 in words is "sixteen billion, nine hundred eighty-six million, nine hundred thirty-one thousand, two hundred six".

Divisors: 1 2 3 6 7 14 21 42 404450743 808901486 1213352229 2426704458 2831155201 5662310402 8493465603 16986931206