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203104531630 = 2571113172351893
BaseRepresentation
bin1011110100100111111…
…0010011010010101110
3201102020201000020021101
42331021332103102232
511311424230003010
6233145510553314
720450056014430
oct2751176232256
9642221006241
10203104531630
1179155238820
123344336883a
13161ca572a40
149b8a538650
15543acb573a
hex2f49f934ae

203104531630 has 256 divisors, whose sum is σ = 542341287936. Its totient is φ = 52606033920.

The previous prime is 203104531627. The next prime is 203104531639. The reversal of 203104531630 is 36135401302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203104531639) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3887964 + ... + 3939856.

It is an arithmetic number, because the mean of its divisors is an integer number (2118520656).

Almost surely, 2203104531630 is an apocalyptic number.

203104531630 is an abundant number, since it is smaller than the sum of its proper divisors (339236756306).

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

203104531630 is a wasteful number, since it uses less digits than its factorization.

203104531630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51971.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 203104531630 its reverse (36135401302), we get a palindrome (239239932932).

The spelling of 203104531630 in words is "two hundred three billion, one hundred four million, five hundred thirty-one thousand, six hundred thirty".