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2690005320 = 233257472237
BaseRepresentation
bin1010000001010110…
…0011100101001000
320221110201102120200
42200111203211020
521002120132240
61122532052200
7123442445052
oct24025434510
96843642520
102690005320
11116048a8a2
12630a64060
1333b3c7432
141b73908d2
1510b25d930
hexa0563948

2690005320 has 48 divisors (see below), whose sum is σ = 8742518460. Its totient is φ = 717334656.

The previous prime is 2690005303. The next prime is 2690005361. The reversal of 2690005320 is 235000962.

It can be written as a sum of positive squares in 2 ways, for example, as 2669375556 + 20629764 = 51666^2 + 4542^2 .

It is a super-2 number, since 2×26900053202 = 14472257243256604800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3735759 + ... + 3736478.

Almost surely, 22690005320 is an apocalyptic number.

2690005320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2690005320 is an abundant number, since it is smaller than the sum of its proper divisors (6052513140).

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

2690005320 is a wasteful number, since it uses less digits than its factorization.

2690005320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7472254 (or 7472247 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 2690005320 is about 51865.2612063219. The cubic root of 2690005320 is about 1390.7563332058.

The spelling of 2690005320 in words is "two billion, six hundred ninety million, five thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 7472237 14944474 22416711 29888948 37361185 44833422 59777896 67250133 74722370 89666844 112083555 134500266 149444740 179333688 224167110 269000532 298889480 336250665 448334220 538001064 672501330 896668440 1345002660 2690005320