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2687552142 = 231161976571
BaseRepresentation
bin1010000000110000…
…1100101010001110
320221022002210110020
42200030030222032
521001003132032
61122403323010
7123412546662
oct24014145216
96838083406
102687552142
11115a064780
12630080466
1333aa48952
141b6d128a2
1510ae26b2c
hexa030ca8e

2687552142 has 32 divisors (see below), whose sum is σ = 5865588864. Its totient is φ = 814154400.

The previous prime is 2687552141. The next prime is 2687552171. The reversal of 2687552142 is 2412557862.

It is a junction number, because it is equal to n+sod(n) for n = 2687552094 and 2687552103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687552141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405717 + ... + 412287.

It is an arithmetic number, because the mean of its divisors is an integer number (183299652).

Almost surely, 22687552142 is an apocalyptic number.

2687552142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2687552142 is an abundant number, since it is smaller than the sum of its proper divisors (3178036722).

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

2687552142 is a wasteful number, since it uses less digits than its factorization.

2687552142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12784.

The product of its digits is 268800, while the sum is 42.

The square root of 2687552142 is about 51841.6062829847. The cubic root of 2687552142 is about 1390.3334331129. Note that the first 3 decimals are identical.

The spelling of 2687552142 in words is "two billion, six hundred eighty-seven million, five hundred fifty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 6197 6571 12394 13142 18591 19713 37182 39426 68167 72281 136334 144562 204501 216843 409002 433686 40720487 81440974 122161461 244322922 447925357 895850714 1343776071 2687552142