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129470350740 = 22352157839179
BaseRepresentation
bin111100010010100001…
…0001100010110010100
3110101012000022021102120
41320211002030112110
54110123402210430
6135251114535540
712232252552263
oct1704502142624
9411160267376
10129470350740
114a9a9701875
12211134375b0
13c29423b2c3
1463a2dd65da
15357b5e0610
hex1e2508c594

129470350740 has 24 divisors (see below), whose sum is σ = 362516982240. Its totient is φ = 34525426848.

The previous prime is 129470350697. The next prime is 129470350741. The reversal of 129470350740 is 47053074921.

It is a junction number, because it is equal to n+sod(n) for n = 129470350692 and 129470350701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129470350741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078919530 + ... + 1078919649.

It is an arithmetic number, because the mean of its divisors is an integer number (15104874260).

Almost surely, 2129470350740 is an apocalyptic number.

129470350740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129470350740 is an abundant number, since it is smaller than the sum of its proper divisors (233046631500).

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

129470350740 is a wasteful number, since it uses less digits than its factorization.

129470350740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157839191 (or 2157839189 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 129470350740 in words is "one hundred twenty-nine billion, four hundred seventy million, three hundred fifty thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2157839179 4315678358 6473517537 8631356716 10789195895 12947035074 21578391790 25894070148 32367587685 43156783580 64735175370 129470350740