Search a number
-
+
207680126 = 21721128949
BaseRepresentation
bin11000110000011…
…11001001111110
3112110210020120112
430120033021332
5411131231001
632335150022
75101152263
oct1430171176
9473706515
10207680126
11a7259175
1259675312
1334045c64
141d82126a
1513374cbb
hexc60f27e

207680126 has 16 divisors (see below), whose sum is σ = 331419600. Its totient is φ = 97265280.

The previous prime is 207680111. The next prime is 207680131. The reversal of 207680126 is 621086702.

It is a junction number, because it is equal to n+sod(n) for n = 207680092 and 207680101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7301 + ... + 21648.

It is an arithmetic number, because the mean of its divisors is an integer number (20713725).

Almost surely, 2207680126 is an apocalyptic number.

207680126 is a deficient number, since it is larger than the sum of its proper divisors (123739474).

207680126 is a wasteful number, since it uses less digits than its factorization.

207680126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29179.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 207680126 is about 14411.1111993489. Note that the first 4 decimals coincide. The cubic root of 207680126 is about 592.1953317413.

The spelling of 207680126 in words is "two hundred seven million, six hundred eighty thousand, one hundred twenty-six".

Divisors: 1 2 17 34 211 422 3587 7174 28949 57898 492133 984266 6108239 12216478 103840063 207680126