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203103032132 = 2271113211311773
BaseRepresentation
bin1011110100100111100…
…0100101001101000100
3201102020121012001100102
42331021320211031010
511311423334012012
6233145414503232
720450040200630
oct2751170451504
9642217161312
10203103032132
1179154404170
1233442964b18
13161ca169370
149b8a267dc0
15543aabb2c2
hex2f49e25344

203103032132 has 192 divisors, whose sum is σ = 481646850048. Its totient is φ = 72370368000.

The previous prime is 203103032059. The next prime is 203103032137. The reversal of 203103032132 is 231230301302.

It is a super-2 number, since 2×2031030321322 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203103032137) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 262746098 + ... + 262746870.

It is an arithmetic number, because the mean of its divisors is an integer number (2508577344).

Almost surely, 2203103032132 is an apocalyptic number.

203103032132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203103032132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240823425024).

203103032132 is an abundant number, since it is smaller than the sum of its proper divisors (278543817916).

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

203103032132 is a wasteful number, since it uses less digits than its factorization.

203103032132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330 (or 1328 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203103032132 its reverse (231230301302), we get a palindrome (434333333434).

The spelling of 203103032132 in words is "two hundred three billion, one hundred three million, thirty-two thousand, one hundred thirty-two".