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202068140 = 22510103407
BaseRepresentation
bin11000000101101…
…01000010101100
3112002020010101012
430002311002230
5403212140030
632015004352
75002356641
oct1402650254
9462203335
10202068140
11a407586a
12578096b8
1332b2c761
141cb9ddc8
1512b17095
hexc0b50ac

202068140 has 12 divisors (see below), whose sum is σ = 424343136. Its totient is φ = 80827248.

The previous prime is 202068127. The next prime is 202068149. The reversal of 202068140 is 41860202.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (202068149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5051684 + ... + 5051723.

It is an arithmetic number, because the mean of its divisors is an integer number (35361928).

Almost surely, 2202068140 is an apocalyptic number.

202068140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202068140 is an abundant number, since it is smaller than the sum of its proper divisors (222274996).

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

202068140 is a wasteful number, since it uses less digits than its factorization.

202068140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10103416 (or 10103414 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 202068140 is about 14215.0673582646. The cubic root of 202068140 is about 586.8123985127.

The spelling of 202068140 in words is "two hundred two million, sixty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 10103407 20206814 40413628 50517035 101034070 202068140