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2744420131 = 15717480383
BaseRepresentation
bin1010001110010100…
…1000011100100011
321002021002222200001
42203211020130203
521110032421011
61132154240431
7125003120605
oct24345103443
97067088601
102744420131
111189176512
12647126117
1334976a14b
141c06b7175
15110e0b7c1
hexa3948723

2744420131 has 4 divisors (see below), whose sum is σ = 2761900672. Its totient is φ = 2726939592.

The previous prime is 2744420117. The next prime is 2744420141. The reversal of 2744420131 is 1310244472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2744420131 - 29 = 2744419619 is a prime.

It is a super-2 number, since 2×27444201312 = 15063683710876114322, 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 2744420131.

It is not an unprimeable number, because it can be changed into a prime (2744420141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8740035 + ... + 8740348.

It is an arithmetic number, because the mean of its divisors is an integer number (690475168).

Almost surely, 22744420131 is an apocalyptic number.

2744420131 is a deficient number, since it is larger than the sum of its proper divisors (17480541).

2744420131 is a wasteful number, since it uses less digits than its factorization.

2744420131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17480540.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 2744420131 is about 52387.2134303782. The cubic root of 2744420131 is about 1400.0714472041.

The spelling of 2744420131 in words is "two billion, seven hundred forty-four million, four hundred twenty thousand, one hundred thirty-one".

Divisors: 1 157 17480383 2744420131