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2689043136 = 2631317127499
BaseRepresentation
bin1010000001000111…
…1000101011000000
320221101220112201020
42200101320223000
521001343340021
61122455305440
7123431326623
oct24021705300
96841815636
102689043136
11115a9929aa
1263067b280
1333b14b4b0
141b71bddba
1510b11d7c6
hexa0478ac0

2689043136 has 224 divisors, whose sum is σ = 8193024000. Its totient is φ = 771047424.

The previous prime is 2689043113. The next prime is 2689043143. The reversal of 2689043136 is 6313409862.

It is a super-3 number, since 3×26890431363 (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5388615 + ... + 5389113.

It is an arithmetic number, because the mean of its divisors is an integer number (36576000).

Almost surely, 22689043136 is an apocalyptic number.

2689043136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2689043136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4096512000).

2689043136 is an abundant number, since it is smaller than the sum of its proper divisors (5503980864).

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

2689043136 is a wasteful number, since it uses less digits than its factorization.

2689043136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 2689043136 is about 51855.9845726605. The cubic root of 2689043136 is about 1390.5904942436.

The spelling of 2689043136 in words is "two billion, six hundred eighty-nine million, forty-three thousand, one hundred thirty-six".