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15305006413 = 16639203251
BaseRepresentation
bin11100100000011111…
…11101110101001101
31110111122001212211101
432100033331311031
5222321040201123
611010411223101
71051162256644
oct162017756515
943448055741
1015305006413
116544305934
122b71747a91
13159baaa818
14a5293c35b
155e89b1aad
hex3903fdd4d

15305006413 has 4 divisors (see below), whose sum is σ = 15314211328. Its totient is φ = 15295801500.

The previous prime is 15305006291. The next prime is 15305006429. The reversal of 15305006413 is 31460050351.

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 15305006413 - 29 = 15305005901 is a prime.

It is a super-2 number, since 2×153050064132 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15305006443) 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, 4599963 + ... + 4603288.

It is an arithmetic number, because the mean of its divisors is an integer number (3828552832).

Almost surely, 215305006413 is an apocalyptic number.

It is an amenable number.

15305006413 is a deficient number, since it is larger than the sum of its proper divisors (9204915).

15305006413 is an equidigital number, since it uses as much as digits as its factorization.

15305006413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9204914.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 15305006413 its reverse (31460050351), we get a palindrome (46765056764).

The spelling of 15305006413 in words is "fifteen billion, three hundred five million, six thousand, four hundred thirteen".

Divisors: 1 1663 9203251 15305006413