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2201405553 = 3381533539
BaseRepresentation
bin1000001100110110…
…1100100001110001
312200102022222201000
42003031230201301
514002024434203
61002235432213
7105360431664
oct20315544161
95612288630
102201405553
11a2a6aa636
125152b5669
13291104349
1416c5256db
15cd3e84a3
hex8336c871

2201405553 has 8 divisors (see below), whose sum is σ = 3261341600. Its totient is φ = 1467603684.

The previous prime is 2201405551. The next prime is 2201405561. The reversal of 2201405553 is 3555041022.

It is a happy number.

2201405553 is a `hidden beast` number, since 2 + 201 + 405 + 5 + 53 = 666.

It is not a de Polignac number, because 2201405553 - 21 = 2201405551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 81533539 = 2201405553 / (2 + 2 + 0 + 1 + 4 + 0 + 5 + 5 + 5 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201405551) 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, 40766743 + ... + 40766796.

It is an arithmetic number, because the mean of its divisors is an integer number (407667700).

Almost surely, 22201405553 is an apocalyptic number.

It is an amenable number.

2201405553 is a deficient number, since it is larger than the sum of its proper divisors (1059936047).

2201405553 is an equidigital number, since it uses as much as digits as its factorization.

2201405553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81533548 (or 81533542 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2201405553 is about 46919.1384511694. The cubic root of 2201405553 is about 1300.8683651910.

Adding to 2201405553 its reverse (3555041022), we get a palindrome (5756446575).

The spelling of 2201405553 in words is "two billion, two hundred one million, four hundred five thousand, five hundred fifty-three".

Divisors: 1 3 9 27 81533539 244600617 733801851 2201405553