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2688093880 = 23567202347
BaseRepresentation
bin1010000000111001…
…0000111010111000
320221100010022120121
42200032100322320
521001123001010
61122423103024
7123420264253
oct24016207270
96840108517
102688093880
11115a3a479a
126302a1a74
1333aba83c4
141b701409a
1510aed23da
hexa0390eb8

2688093880 has 16 divisors (see below), whose sum is σ = 6048211320. Its totient is φ = 1075237536.

The previous prime is 2688093847. The next prime is 2688093887. The reversal of 2688093880 is 883908862.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688093887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33601134 + ... + 33601213.

Almost surely, 22688093880 is an apocalyptic number.

2688093880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2688093880 is an abundant number, since it is smaller than the sum of its proper divisors (3360117440).

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

2688093880 is a wasteful number, since it uses less digits than its factorization.

2688093880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67202358 (or 67202354 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The square root of 2688093880 is about 51846.8309542637. The cubic root of 2688093880 is about 1390.4268447394.

The spelling of 2688093880 in words is "two billion, six hundred eighty-eight million, ninety-three thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 67202347 134404694 268809388 336011735 537618776 672023470 1344046940 2688093880