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203471144 = 23103246931
BaseRepresentation
bin11000010000010…
…11100100101000
3112011212101221022
430020023210220
5404042034034
632105032012
75020322222
oct1410134450
9464771838
10203471144
11a4943978
1258185608
1333201236
141d047412
1512ce2b2e
hexc20b928

203471144 has 16 divisors (see below), whose sum is σ = 385213920. Its totient is φ = 100747440.

The previous prime is 203471143. The next prime is 203471159. The reversal of 203471144 is 441174302.

It is not an unprimeable number, because it can be changed into a prime (203471143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122642 + ... + 124289.

It is an arithmetic number, because the mean of its divisors is an integer number (24075870).

Almost surely, 2203471144 is an apocalyptic number.

It is an amenable number.

203471144 is a deficient number, since it is larger than the sum of its proper divisors (181742776).

203471144 is a wasteful number, since it uses less digits than its factorization.

203471144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247040 (or 247036 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 203471144 is about 14264.3311795541. The cubic root of 203471144 is about 588.1673902935.

The spelling of 203471144 in words is "two hundred three million, four hundred seventy-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 103 206 412 824 246931 493862 987724 1975448 25433893 50867786 101735572 203471144