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203141240 = 2355078531
BaseRepresentation
bin11000001101110…
…11000001111000
3112011020122101122
430012323001320
5404001004430
632054004412
75014446341
oct1406730170
9464218348
10203141240
11a4739025
1258046708
1333117023
141cd9d0c8
1512c79ee5
hexc1bb078

203141240 has 16 divisors (see below), whose sum is σ = 457067880. Its totient is φ = 81256480.

The previous prime is 203141231. The next prime is 203141243. The reversal of 203141240 is 42141302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203141243) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2539226 + ... + 2539305.

Almost surely, 2203141240 is an apocalyptic number.

203141240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203141240 is an abundant number, since it is smaller than the sum of its proper divisors (253926640).

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

203141240 is a wasteful number, since it uses less digits than its factorization.

203141240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078542 (or 5078538 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 203141240 is about 14252.7625392413. The cubic root of 203141240 is about 587.8493374308.

Adding to 203141240 its reverse (42141302), we get a palindrome (245282542).

The spelling of 203141240 in words is "two hundred three million, one hundred forty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 5078531 10157062 20314124 25392655 40628248 50785310 101570620 203141240