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2381140454 = 271115461951
BaseRepresentation
bin1000110111101101…
…0101000111100110
320010221112110122012
42031323111013212
514334032443304
61032140034222
7113002234310
oct21573250746
96127473565
102381140454
111012101080
12565532972
132bc414664
141883507b0
15de09d16e
hex8ded51e6

2381140454 has 16 divisors (see below), whose sum is σ = 4453042176. Its totient is φ = 927717000.

The previous prime is 2381140453. The next prime is 2381140493. The reversal of 2381140454 is 4540411832.

It is a super-2 number, since 2×23811404542 = 11339659723350652232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2381140454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381140451) 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, 7730822 + ... + 7731129.

It is an arithmetic number, because the mean of its divisors is an integer number (278315136).

Almost surely, 22381140454 is an apocalyptic number.

2381140454 is a deficient number, since it is larger than the sum of its proper divisors (2071901722).

2381140454 is a wasteful number, since it uses less digits than its factorization.

2381140454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15461971.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 2381140454 is about 48796.9307846303. The cubic root of 2381140454 is about 1335.3496732568.

The spelling of 2381140454 in words is "two billion, three hundred eighty-one million, one hundred forty thousand, four hundred fifty-four".

Divisors: 1 2 7 11 14 22 77 154 15461951 30923902 108233657 170081461 216467314 340162922 1190570227 2381140454