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15551414045 = 522961722013
BaseRepresentation
bin11100111101110111…
…11011111100011101
31111010210201200112222
432132323323330131
5223322130222140
611051052435125
71060243560356
oct163673737435
944123650488
1015551414045
116660405602
123020178aa5
13160ab6305b
14a77560d2d
156104365b5
hex39eefbf1d

15551414045 has 16 divisors (see below), whose sum is σ = 18774419760. Its totient is φ = 12366165504.

The previous prime is 15551414009. The next prime is 15551414059. The reversal of 15551414045 is 54041415551.

It can be written as a sum of positive squares in 8 ways, for example, as 5812921 + 15545601124 = 2411^2 + 124682^2 .

It is a cyclic number.

It is not a de Polignac number, because 15551414045 - 210 = 15551413021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15551413996 and 15551414014.

It is a congruent number.

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, 695459 + ... + 717471.

It is an arithmetic number, because the mean of its divisors is an integer number (1173401235).

Almost surely, 215551414045 is an apocalyptic number.

It is an amenable number.

15551414045 is a deficient number, since it is larger than the sum of its proper divisors (3223005715).

15551414045 is a wasteful number, since it uses less digits than its factorization.

15551414045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22864.

The product of its (nonzero) digits is 40000, while the sum is 35.

Adding to 15551414045 its reverse (54041415551), we get a palindrome (69592829596).

The spelling of 15551414045 in words is "fifteen billion, five hundred fifty-one million, four hundred fourteen thousand, forty-five".

Divisors: 1 5 229 617 1145 3085 22013 110065 141293 706465 5040977 13582021 25204885 67910105 3110282809 15551414045