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710144231221 = 1250356797907
BaseRepresentation
bin10100101010101111110…
…01010000011100110101
32111220000011122201220101
422111113321100130311
543113333410344341
61302122531234101
7102210015240445
oct12252771203465
92456004581811
10710144231221
112541969a5767
12b5769a48931
1351c73cb6619
142652a690125
1513714955831
hexa557e50735

710144231221 has 4 divisors (see below), whose sum is σ = 710201041632. Its totient is φ = 710087420812.

The previous prime is 710144231213. The next prime is 710144231231. The reversal of 710144231221 is 122132441017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 710144231221 - 23 = 710144231213 is a prime.

It is a super-2 number, since 2×7101442312212 (a number of 25 digits) 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 710144231221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (710144231231) 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, 28386451 + ... + 28411456.

It is an arithmetic number, because the mean of its divisors is an integer number (177550260408).

Almost surely, 2710144231221 is an apocalyptic number.

It is an amenable number.

710144231221 is a deficient number, since it is larger than the sum of its proper divisors (56810411).

710144231221 is a wasteful number, since it uses less digits than its factorization.

710144231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56810410.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 710144231221 its reverse (122132441017), we get a palindrome (832276672238).

The spelling of 710144231221 in words is "seven hundred ten billion, one hundred forty-four million, two hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 12503 56797907 710144231221