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7144281031 = 59409129599
BaseRepresentation
bin1101010011101010…
…10001001111000111
3200102220020002011011
412221311101033013
5104112413443111
63140530423051
7342020246446
oct65165211707
920386202134
107144281031
113036840098
121474731a87
1389b181a34
144bab96d5d
152bc319021
hex1a9d513c7

7144281031 has 8 divisors (see below), whose sum is σ = 7267392000. Its totient is φ = 7021237560.

The previous prime is 7144281007. The next prime is 7144281041. The reversal of 7144281031 is 1301824417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7144281031 - 27 = 7144280903 is a prime.

It is a super-2 number, since 2×71442810312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7144280984 and 7144281002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7144281041) 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, 226570 + ... + 256168.

It is an arithmetic number, because the mean of its divisors is an integer number (908424000).

Almost surely, 27144281031 is an apocalyptic number.

7144281031 is a deficient number, since it is larger than the sum of its proper divisors (123110969).

7144281031 is a wasteful number, since it uses less digits than its factorization.

7144281031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33749.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 7144281031 is about 84523.8488889378. The cubic root of 7144281031 is about 1925.9847466017.

The spelling of 7144281031 in words is "seven billion, one hundred forty-four million, two hundred eighty-one thousand, thirty-one".

Divisors: 1 59 4091 29599 241369 1746341 121089509 7144281031