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203212872 = 233211324977
BaseRepresentation
bin11000001110011…
…00100001001000
3112011101021122200
430013030201020
5404010302442
632055320200
75015165232
oct1407144110
9464337580
10203212872
11a4787925
1258080060
1333140805
141cdbb252
1512c9134c
hexc1cc848

203212872 has 48 divisors (see below), whose sum is σ = 555260940. Its totient is φ = 67135488.

The previous prime is 203212859. The next prime is 203212901. The reversal of 203212872 is 278212302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 128459556 + 74753316 = 11334^2 + 8646^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4353 + ... + 20624.

Almost surely, 2203212872 is an apocalyptic number.

It is an amenable number.

203212872 is an abundant number, since it is smaller than the sum of its proper divisors (352048068).

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

203212872 is a wasteful number, since it uses less digits than its factorization.

203212872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25102 (or 25095 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 203212872 is about 14255.2752341019. The cubic root of 203212872 is about 587.9184254460.

It can be divided in two parts, 2032128 and 72, that multiplied together give a square (146313216 = 120962).

The spelling of 203212872 in words is "two hundred three million, two hundred twelve thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 113 226 339 452 678 904 1017 1356 2034 2712 4068 8136 24977 49954 74931 99908 149862 199816 224793 299724 449586 599448 899172 1798344 2822401 5644802 8467203 11289604 16934406 22579208 25401609 33868812 50803218 67737624 101606436 203212872