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16245454261 = 471667320731
BaseRepresentation
bin11110010000100110…
…11111010110110101
31112221011200120202011
433020103133112311
5231232314014021
611244004244221
71113402040261
oct171023372665
945834616664
1016245454261
116987154263
1231946a0671
1316bb89683a
14b017c70a1
1565132cde1
hex3c84df5b5

16245454261 has 8 divisors (see below), whose sum is σ = 16592897664. Its totient is φ = 15898085760.

The previous prime is 16245454259. The next prime is 16245454273.

16245454261 is nontrivially palindromic in base 10.

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 16245454261 - 21 = 16245454259 is a prime.

It is a super-2 number, since 2×162454542612 (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 (16245454361) 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, 773266 + ... + 793996.

It is an arithmetic number, because the mean of its divisors is an integer number (2074112208).

Almost surely, 216245454261 is an apocalyptic number.

It is an amenable number.

16245454261 is a deficient number, since it is larger than the sum of its proper divisors (347443403).

16245454261 is a wasteful number, since it uses less digits than its factorization.

16245454261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37451.

The product of its digits is 230400, while the sum is 40.

The spelling of 16245454261 in words is "sixteen billion, two hundred forty-five million, four hundred fifty-four thousand, two hundred sixty-one".

Divisors: 1 47 16673 20731 783631 974357 345647963 16245454261