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2130440454 = 23422675801
BaseRepresentation
bin111111011111011…
…1111000100000110
312111110210120220000
41332332333010012
513330343043304
6551222422130
7103536305442
oct17676770406
95443716800
102130440454
119a363a49a
124b5591946
1327c4b846c
14162d31822
15c707b939
hex7efbf106

2130440454 has 40 divisors (see below), whose sum is σ = 4776693768. Its totient is φ = 709711200.

The previous prime is 2130440449. The next prime is 2130440467. The reversal of 2130440454 is 4540440312.

It is a happy number.

2130440454 is a `hidden beast` number, since 213 + 0 + 440 + 4 + 5 + 4 = 666.

It is a super-2 number, since 2×21304404542 = 9077553056079452232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 364354 + ... + 370154.

Almost surely, 22130440454 is an apocalyptic number.

2130440454 is an abundant number, since it is smaller than the sum of its proper divisors (2646253314).

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

2130440454 is a wasteful number, since it uses less digits than its factorization.

2130440454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8082 (or 8073 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2130440454 is about 46156.6945740269. The cubic root of 2130440454 is about 1286.7370320304.

Adding to 2130440454 its reverse (4540440312), we get a palindrome (6670880766).

The spelling of 2130440454 in words is "two billion, one hundred thirty million, four hundred forty thousand, four hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 2267 4534 5801 6801 11602 13602 17403 20403 34806 40806 52209 61209 104418 122418 156627 183627 313254 367254 469881 939762 13150867 26301734 39452601 78905202 118357803 236715606 355073409 710146818 1065220227 2130440454