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2015552045 = 5131710717047
BaseRepresentation
bin111100000100010…
…1110001000101101
312012110121122121202
41320020232020231
513111440131140
6532000135245
7100642624013
oct17010561055
95173548552
102015552045
119447aa0a1
12483007525
13261761060
141519868b3
15bbe35915
hex7822e22d

2015552045 has 32 divisors (see below), whose sum is σ = 2783870208. Its totient is φ = 1387680768.

The previous prime is 2015552003. The next prime is 2015552051. The reversal of 2015552045 is 5402555102.

It is a cyclic number.

It is not a de Polignac number, because 2015552045 - 28 = 2015551789 is a prime.

It is a super-2 number, since 2×20155520452 = 8124900092207364050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2015551999 and 2015552017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109712 + ... + 126758.

It is an arithmetic number, because the mean of its divisors is an integer number (86995944).

Almost surely, 22015552045 is an apocalyptic number.

It is an amenable number.

2015552045 is a deficient number, since it is larger than the sum of its proper divisors (768318163).

2015552045 is a wasteful number, since it uses less digits than its factorization.

2015552045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17189.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 2015552045 is about 44894.8999887515. The cubic root of 2015552045 is about 1263.1783463019.

The spelling of 2015552045 in words is "two billion, fifteen million, five hundred fifty-two thousand, forty-five".

Divisors: 1 5 13 17 65 85 107 221 535 1105 1391 1819 6955 9095 17047 23647 85235 118235 221611 289799 1108055 1448995 1824029 3767387 9120145 18836935 23712377 31008493 118561885 155042465 403110409 2015552045