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205401120132 = 223132357246689
BaseRepresentation
bin1011111101001011011…
…1000101110110000100
3201122011202110000102210
42333102313011312010
511331130141321012
6234205430503420
720561013466635
oct2772267056604
9648152400383
10205401120132
117a12363974a
1233984504b70
13164a52c2150
149d2755988c
15552271123c
hex2fd2dc5d84

205401120132 has 48 divisors (see below), whose sum is σ = 538576859520. Its totient is φ = 60452502528.

The previous prime is 205401120121. The next prime is 205401120143. The reversal of 205401120132 is 231021104502.

It is an interprime number because it is at equal distance from previous prime (205401120121) and next prime (205401120143).

It is a junction number, because it is equal to n+sod(n) for n = 205401120099 and 205401120108.

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, 28619757 + ... + 28626932.

It is an arithmetic number, because the mean of its divisors is an integer number (11220351240).

Almost surely, 2205401120132 is an apocalyptic number.

It is an amenable number.

205401120132 is an abundant number, since it is smaller than the sum of its proper divisors (333175739388).

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

205401120132 is a wasteful number, since it uses less digits than its factorization.

205401120132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57246732 (or 57246730 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 205401120132 its reverse (231021104502), we get a palindrome (436422224634).

The spelling of 205401120132 in words is "two hundred five billion, four hundred one million, one hundred twenty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 23 26 39 46 52 69 78 92 138 156 276 299 598 897 1196 1794 3588 57246689 114493378 171740067 228986756 343480134 686960268 744206957 1316673847 1488413914 2232620871 2633347694 2976827828 3950021541 4465241742 5266695388 7900043082 8930483484 15800086164 17116760011 34233520022 51350280033 68467040044 102700560066 205401120132