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207081516 = 223169710169
BaseRepresentation
bin11000101011111…
…01000000101100
3112102122211102210
430111331000230
5411003102031
632314250420
75063110125
oct1425750054
9472584383
10207081516
11a698a454
1259426a10
1333b96655
141d70704c
15132a7746
hexc57d02c

207081516 has 24 divisors (see below), whose sum is σ = 483522480. Its totient is φ = 68979712.

The previous prime is 207081493. The next prime is 207081521. The reversal of 207081516 is 615180702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15280 + ... + 25448.

It is an arithmetic number, because the mean of its divisors is an integer number (20146770).

Almost surely, 2207081516 is an apocalyptic number.

It is an amenable number.

207081516 is an abundant number, since it is smaller than the sum of its proper divisors (276440964).

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

207081516 is a wasteful number, since it uses less digits than its factorization.

207081516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11873 (or 11871 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 207081516 is about 14390.3271679278. The cubic root of 207081516 is about 591.6258097644.

The spelling of 207081516 in words is "two hundred seven million, eighty-one thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 12 1697 3394 5091 6788 10169 10182 20338 20364 30507 40676 61014 122028 17256793 34513586 51770379 69027172 103540758 207081516