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16130157449 = 72304308207
BaseRepresentation
bin11110000010110111…
…01010101110001001
31112122010201220020212
433001123222232021
5231013310014244
611224325130505
71110502035050
oct170133525611
945563656225
1016130157449
11692806503a
123161b59a35
1316a0a28583
14ad0373397
15646155d9e
hex3c16eab89

16130157449 has 4 divisors (see below), whose sum is σ = 18434465664. Its totient is φ = 13825849236.

The previous prime is 16130157443. The next prime is 16130157469. The reversal of 16130157449 is 94475103161.

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 16130157449 - 224 = 16113380233 is a prime.

It is a super-3 number, since 3×161301574493 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16130157443) 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, 1152154097 + ... + 1152154110.

It is an arithmetic number, because the mean of its divisors is an integer number (4608616416).

Almost surely, 216130157449 is an apocalyptic number.

It is an amenable number.

16130157449 is a deficient number, since it is larger than the sum of its proper divisors (2304308215).

16130157449 is an equidigital number, since it uses as much as digits as its factorization.

16130157449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304308214.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 16130157449 in words is "sixteen billion, one hundred thirty million, one hundred fifty-seven thousand, four hundred forty-nine".

Divisors: 1 7 2304308207 16130157449