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15151042730 = 2510457144889
BaseRepresentation
bin11100001110001001…
…01001000010101010
31110002220100201100202
432013010221002222
5222012131331410
610543231232202
71044312511145
oct160704510252
943086321322
1015151042730
11647540671a
122b2a078662
131575c21755
14a3a30105c
155da1ecca5
hex3871290aa

15151042730 has 16 divisors (see below), whose sum is σ = 27274673160. Its totient is φ = 6059795712.

The previous prime is 15151042679. The next prime is 15151042771. The reversal of 15151042730 is 3724015151.

It can be written as a sum of positive squares in 4 ways, for example, as 14922821281 + 228221449 = 122159^2 + 15107^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15151042693 and 15151042702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32126 + ... + 177014.

Almost surely, 215151042730 is an apocalyptic number.

15151042730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15151042730 is a deficient number, since it is larger than the sum of its proper divisors (12123630430).

15151042730 is a wasteful number, since it uses less digits than its factorization.

15151042730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155353.

The product of its (nonzero) digits is 4200, while the sum is 29.

Adding to 15151042730 its reverse (3724015151), we get a palindrome (18875057881).

The spelling of 15151042730 in words is "fifteen billion, one hundred fifty-one million, forty-two thousand, seven hundred thirty".

Divisors: 1 2 5 10 10457 20914 52285 104570 144889 289778 724445 1448890 1515104273 3030208546 7575521365 15151042730