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16248744784261 = 117417199158503
BaseRepresentation
bin1110110001110011010010…
…1010010011000110000101
32010112100211221222002120001
43230130310222103012011
54112204412131044021
654320323104041301
73264635020550233
oct354346452230605
963470757862501
1016248744784261
1151a5065910540
1219a5147903231
1390b3334bc5a2
1440262cb49953
151d2a018ee091
hexec734a93185

16248744784261 has 8 divisors (see below), whose sum is σ = 17728293392064. Its totient is φ = 14769594508320.

The previous prime is 16248744784231. The next prime is 16248744784373.

16248744784261 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 16248744784261 - 25 = 16248744784229 is a prime.

It is a super-2 number, since 2×162487447842612 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16248744784193 and 16248744784202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16248744784231) 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, 99497665 + ... + 99660838.

It is an arithmetic number, because the mean of its divisors is an integer number (2216036674008).

Almost surely, 216248744784261 is an apocalyptic number.

16248744784261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16248744784261 is a deficient number, since it is larger than the sum of its proper divisors (1479548607803).

16248744784261 is a wasteful number, since it uses less digits than its factorization.

16248744784261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199165931.

The product of its digits is 115605504, while the sum is 64.

The spelling of 16248744784261 in words is "sixteen trillion, two hundred forty-eight billion, seven hundred forty-four million, seven hundred eighty-four thousand, two hundred sixty-one".

Divisors: 1 11 7417 81587 199158503 2190743533 1477158616751 16248744784261