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2689808484 = 2231120377337
BaseRepresentation
bin1010000001010011…
…0011100001100100
320221110100102120110
42200110303201210
521002042332414
61122523533020
7123440665146
oct24024634144
96843312513
102689808484
111160365a20
1263098a170
1333b35896c
141b733cc96
1510b220459
hexa0533864

2689808484 has 24 divisors (see below), whose sum is σ = 6846785568. Its totient is φ = 815093440.

The previous prime is 2689808461. The next prime is 2689808489. The reversal of 2689808484 is 4848089862.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2689808489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10188537 + ... + 10188800.

It is an arithmetic number, because the mean of its divisors is an integer number (285282732).

Almost surely, 22689808484 is an apocalyptic number.

It is an amenable number.

2689808484 is an abundant number, since it is smaller than the sum of its proper divisors (4156977084).

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

2689808484 is a wasteful number, since it uses less digits than its factorization.

2689808484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20377355 (or 20377353 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 57.

The square root of 2689808484 is about 51863.3636009081. The cubic root of 2689808484 is about 1390.7224103992.

The spelling of 2689808484 in words is "two billion, six hundred eighty-nine million, eight hundred eight thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 20377337 40754674 61132011 81509348 122264022 224150707 244528044 448301414 672452121 896602828 1344904242 2689808484