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721241230411 = 13136067407741
BaseRepresentation
bin10100111111011010101…
…00111100110001001011
32112221122112121201000101
422133231110330301023
543304100223333121
61311200022350231
7103052013206662
oct12375524746113
92487575551011
10721241230411
11258970965479
12b794628b377
1353022043930
1426ca03addd9
1513b63ca5491
hexa7ed53cc4b

721241230411 has 8 divisors (see below), whose sum is σ = 776728938384. Its totient is φ = 665754610080.

The previous prime is 721241230397. The next prime is 721241230447. The reversal of 721241230411 is 114032142127.

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 721241230411 - 29 = 721241229899 is a prime.

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 721241230411.

It is not an unprimeable number, because it can be changed into a prime (721241230471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1565001 + ... + 1972741.

It is an arithmetic number, because the mean of its divisors is an integer number (97091117298).

Almost surely, 2721241230411 is an apocalyptic number.

721241230411 is a deficient number, since it is larger than the sum of its proper divisors (55487707973).

721241230411 is a wasteful number, since it uses less digits than its factorization.

721241230411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543821.

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

Adding to 721241230411 its reverse (114032142127), we get a palindrome (835273372538).

The spelling of 721241230411 in words is "seven hundred twenty-one billion, two hundred forty-one million, two hundred thirty thousand, four hundred eleven".

Divisors: 1 13 136067 407741 1768871 5300633 55480094647 721241230411