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987049109255 = 5113148316921
BaseRepresentation
bin11100101110100001011…
…01100010011100000111
310111100202011001000020212
432113100231202130013
5112132434032444010
62033235531550035
7131211665666036
oct16272055423407
93440664030225
10987049109255
11350672543000
1213b3688bb31b
137210312c991
1435ab842271d
151aa1e7b5505
hexe5d0b62707

987049109255 has 16 divisors (see below), whose sum is σ = 1302815842848. Its totient is φ = 717853892800.

The previous prime is 987049109239. The next prime is 987049109281. The reversal of 987049109255 is 552901940789.

987049109255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 987049109255 - 24 = 987049109239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 987049109194 and 987049109203.

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, 74151806 + ... + 74165115.

It is an arithmetic number, because the mean of its divisors is an integer number (81425990178).

Almost surely, 2987049109255 is an apocalyptic number.

987049109255 is a deficient number, since it is larger than the sum of its proper divisors (315766733593).

987049109255 is a wasteful number, since it uses less digits than its factorization.

987049109255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148316959 (or 148316937 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 59.

The spelling of 987049109255 in words is "nine hundred eighty-seven billion, forty-nine million, one hundred nine thousand, two hundred fifty-five".

Divisors: 1 5 11 55 121 605 1331 6655 148316921 741584605 1631486131 8157430655 17946347441 89731737205 197409821851 987049109255