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2690180281 = 59914393121
BaseRepresentation
bin1010000001011000…
…1110010010111001
320221111001022120201
42200112032102321
521002141232111
61122535522201
7123444104125
oct24026162271
96844038521
102690180281
11116059a298
12630b29361
1333b458c69
141b73d8585
1510b2956c1
hexa058e4b9

2690180281 has 8 divisors (see below), whose sum is σ = 2697408000. Its totient is φ = 2682962880.

The previous prime is 2690180261. The next prime is 2690180291. The reversal of 2690180281 is 1820810962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2690180281 - 215 = 2690147513 is a prime.

It is a super-2 number, since 2×26901802812 = 14474139888562477922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2690180281.

It is not an unprimeable number, because it can be changed into a prime (2690180231) 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, 860401 + ... + 863521.

It is an arithmetic number, because the mean of its divisors is an integer number (337176000).

Almost surely, 22690180281 is an apocalyptic number.

It is an amenable number.

2690180281 is a deficient number, since it is larger than the sum of its proper divisors (7227719).

2690180281 is a wasteful number, since it uses less digits than its factorization.

2690180281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 2690180281 is about 51866.9478666328. The cubic root of 2690180281 is about 1390.7864846757.

The spelling of 2690180281 in words is "two billion, six hundred ninety million, one hundred eighty thousand, two hundred eighty-one".

Divisors: 1 599 1439 3121 861961 1869479 4491119 2690180281