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203143952 = 24111154227
BaseRepresentation
bin11000001101110…
…11101100010000
3112011020210010002
430012323230100
5404001101302
632054025132
75014460264
oct1406735420
9464223102
10203143952
11a4740070
12580481a8
133311832b
141cda00a4
1512c7ac02
hexc1bbb10

203143952 has 20 divisors (see below), whose sum is σ = 429372816. Its totient is φ = 92338080.

The previous prime is 203143951. The next prime is 203143979. The reversal of 203143952 is 259341302.

It is not an unprimeable number, because it can be changed into a prime (203143951) 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, 576938 + ... + 577289.

Almost surely, 2203143952 is an apocalyptic number.

203143952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

203143952 is an abundant number, since it is smaller than the sum of its proper divisors (226228864).

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

203143952 is a wasteful number, since it uses less digits than its factorization.

203143952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154246 (or 1154240 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 203143952 is about 14252.8576783745. The cubic root of 203143952 is about 587.8519534109.

The spelling of 203143952 in words is "two hundred three million, one hundred forty-three thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 11 16 22 44 88 176 1154227 2308454 4616908 9233816 12696497 18467632 25392994 50785988 101571976 203143952