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481621613 = 1171616673
BaseRepresentation
bin11100101101001…
…111011001101101
31020120020220122112
4130231033121231
51441243342423
6115442453405
714635500434
oct3455173155
91216226575
10481621613
112279544a0
12115364265
1378a1bb05
1447d7011b
152c437a78
hex1cb4f66d

481621613 has 8 divisors (see below), whose sum is σ = 532806336. Its totient is φ = 431670400.

The previous prime is 481621607. The next prime is 481621627. The reversal of 481621613 is 316126184.

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 481621613 - 218 = 481359469 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 481621613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481621603) 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, 307556 + ... + 309117.

It is an arithmetic number, because the mean of its divisors is an integer number (66600792).

Almost surely, 2481621613 is an apocalyptic number.

It is an amenable number.

481621613 is a deficient number, since it is larger than the sum of its proper divisors (51184723).

481621613 is a wasteful number, since it uses less digits than its factorization.

481621613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616755.

The product of its digits is 6912, while the sum is 32.

The square root of 481621613 is about 21945.8791803837. The cubic root of 481621613 is about 783.8542594263.

Adding to 481621613 its reverse (316126184), we get a palindrome (797747797).

The spelling of 481621613 in words is "four hundred eighty-one million, six hundred twenty-one thousand, six hundred thirteen".

Divisors: 1 11 71 781 616673 6783403 43783783 481621613