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103442432530 = 2553197990733
BaseRepresentation
bin110000001010110100…
…1100100001000010010
3100220000002012000220211
41200111221210020102
53143322230320110
6115304254154334
710321254111643
oct1402551441022
9326002160824
10103442432530
113a962613668
121806a7b29aa
1399a6a71378
1450143156ca
152a5657498a
hex1815a64212

103442432530 has 32 divisors (see below), whose sum is σ = 190672702704. Its totient is φ = 40390162176.

The previous prime is 103442432417. The next prime is 103442432543. The reversal of 103442432530 is 35234244301.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 89986200529 + 13456232001 = 299977^2 + 116001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 103442432492 and 103442432501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390957 + ... + 599776.

Almost surely, 2103442432530 is an apocalyptic number.

103442432530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103442432530 is a deficient number, since it is larger than the sum of its proper divisors (87230270174).

103442432530 is a wasteful number, since it uses less digits than its factorization.

103442432530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990990.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 103442432530 its reverse (35234244301), we get a palindrome (138676676831).

The spelling of 103442432530 in words is "one hundred three billion, four hundred forty-two million, four hundred thirty-two thousand, five hundred thirty".

Divisors: 1 2 5 10 53 106 197 265 394 530 985 1970 10441 20882 52205 104410 990733 1981466 4953665 9907330 52508849 105017698 195174401 262544245 390348802 525088490 975872005 1951744010 10344243253 20688486506 51721216265 103442432530