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2687291055 = 32561796787
BaseRepresentation
bin1010000000101100…
…1100111010101111
320221021121112022100
42200023030322233
521000421303210
61122353550143
7123410411541
oct24013147257
96837545270
102687291055
1111599a65a9
1262bb75353
1333a986b67
141b6c85691
1510adc45c0
hexa02cceaf

2687291055 has 24 divisors (see below), whose sum is σ = 4665568752. Its totient is φ = 1430884224.

The previous prime is 2687291053. The next prime is 2687291059. The reversal of 2687291055 is 5501927862.

2687291055 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 2687291055 - 21 = 2687291053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2687291055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687291053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20629 + ... + 76158.

It is an arithmetic number, because the mean of its divisors is an integer number (194398698).

Almost surely, 22687291055 is an apocalyptic number.

2687291055 is a deficient number, since it is larger than the sum of its proper divisors (1978277697).

2687291055 is a wasteful number, since it uses less digits than its factorization.

2687291055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97415 (or 97412 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 2687291055 is about 51839.0880996184. The cubic root of 2687291055 is about 1390.2884095225.

The spelling of 2687291055 in words is "two billion, six hundred eighty-seven million, two hundred ninety-one thousand, fifty-five".

Divisors: 1 3 5 9 15 45 617 1851 3085 5553 9255 27765 96787 290361 483935 871083 1451805 4355415 59717579 179152737 298587895 537458211 895763685 2687291055