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2690620241 = 9728198713
BaseRepresentation
bin1010000001011111…
…1001101101010001
320221111212200002112
42200113321231101
521002244321431
61122553155105
7123450615611
oct24027715521
96844780075
102690620241
11116086a8a1
126310bba95
1333b5812aa
141b74b0a41
1510b330c2b
hexa05f9b51

2690620241 has 8 divisors (see below), whose sum is σ = 2728060104. Its totient is φ = 2653378560.

The previous prime is 2690620223. The next prime is 2690620291. The reversal of 2690620241 is 1420260962.

2690620241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1200969025 + 1489651216 = 34655^2 + 38596^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2690620241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2690620198 and 2690620207.

It is not an unprimeable number, because it can be changed into a prime (2690620291) 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, 22100 + ... + 76613.

It is an arithmetic number, because the mean of its divisors is an integer number (341007513).

Almost surely, 22690620241 is an apocalyptic number.

It is an amenable number.

2690620241 is a deficient number, since it is larger than the sum of its proper divisors (37439863).

2690620241 is an equidigital number, since it uses as much as digits as its factorization.

2690620241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99091.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2690620241 is about 51871.1889298867. The cubic root of 2690620241 is about 1390.8622983145.

The spelling of 2690620241 in words is "two billion, six hundred ninety million, six hundred twenty thousand, two hundred forty-one".

Divisors: 1 97 281 27257 98713 9575161 27738353 2690620241