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203212030 = 25719152791
BaseRepresentation
bin11000001110011…
…00010011111110
3112011101020111111
430013030103332
5404010241110
632055312234
75015162620
oct1407142376
9464336444
10203212030
11a478722a
125807b67a
1333140308
141cdbac10
1512c90e8a
hexc1cc4fe

203212030 has 32 divisors (see below), whose sum is σ = 440040960. Its totient is φ = 66005280.

The previous prime is 203212021. The next prime is 203212073. The reversal of 203212030 is 30212302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 203212030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75066 + ... + 77725.

It is an arithmetic number, because the mean of its divisors is an integer number (13751280).

Almost surely, 2203212030 is an apocalyptic number.

203212030 is an abundant number, since it is smaller than the sum of its proper divisors (236828930).

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

203212030 is a wasteful number, since it uses less digits than its factorization.

203212030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152824.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 203212030 is about 14255.2457011445. The cubic root of 203212030 is about 587.9176134436.

Adding to 203212030 its reverse (30212302), we get a palindrome (233424332).

The spelling of 203212030 in words is "two hundred three million, two hundred twelve thousand, thirty".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 1330 152791 305582 763955 1069537 1527910 2139074 2903029 5347685 5806058 10695370 14515145 20321203 29030290 40642406 101606015 203212030