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2075622481 = 29215712
BaseRepresentation
bin111101110110111…
…0111110001010001
312100122122112202201
41323231313301101
513222324404411
6541543443201
7102302333332
oct17355676121
95318575681
102075622481
119756a8989
1249b156501
132710340aa
14159942289
15c234e3c1
hex7bb77c51

2075622481 has 9 divisors (see below), whose sum is σ = 2151032923. Its totient is φ = 2002773640.

The previous prime is 2075622457. The next prime is 2075622509. The reversal of 2075622481 is 1842265702.

It is a happy number.

The square root of 2075622481 is 45559.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1088406081 + 987216400 = 32991^2 + 31420^2 .

It is not a de Polignac number, because 2075622481 - 29 = 2075621969 is a prime.

It is a super-2 number, since 2×20756224812 = 8616417367265190722, 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 2075622481.

It is not an unprimeable number, because it can be changed into a prime (2075622431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1320426 + ... + 1321996.

Almost surely, 22075622481 is an apocalyptic number.

2075622481 is the 45559-th square number.

2075622481 is the 22780-th centered octagonal number.

It is an amenable number.

2075622481 is a deficient number, since it is larger than the sum of its proper divisors (75410442).

2075622481 is an frugal number, since it uses more digits than its factorization.

2075622481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The cubic root of 2075622481 is about 1275.6047329425.

The spelling of 2075622481 in words is "two billion, seventy-five million, six hundred twenty-two thousand, four hundred eighty-one".

Divisors: 1 29 841 1571 45559 1321211 2468041 71573189 2075622481