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5181414668 = 223553136457
BaseRepresentation
bin1001101001101011…
…00001110100001100
3111101002202010200222
410310311201310030
541102420232133
62214051410512
7242254204133
oct46465416414
914332663628
105181414668
112219856591
1210072b3a38
13647609651
1437220691a
15204d3de98
hex134d61d0c

5181414668 has 12 divisors (see below), whose sum is σ = 9067979592. Its totient is φ = 2590563360.

The previous prime is 5181414661. The next prime is 5181414671. The reversal of 5181414668 is 8664141815.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (5181414661) 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, 123896 + ... + 160352.

It is an arithmetic number, because the mean of its divisors is an integer number (755664966).

Almost surely, 25181414668 is an apocalyptic number.

It is an amenable number.

5181414668 is a deficient number, since it is larger than the sum of its proper divisors (3886564924).

5181414668 is a wasteful number, since it uses less digits than its factorization.

5181414668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71992 (or 71990 counting only the distinct ones).

The product of its digits is 184320, while the sum is 44.

The square root of 5181414668 is about 71982.0440665587. The cubic root of 5181414668 is about 1730.4117286599.

The spelling of 5181414668 in words is "five billion, one hundred eighty-one million, four hundred fourteen thousand, six hundred sixty-eight".

Divisors: 1 2 4 35531 36457 71062 72914 142124 145828 1295353667 2590707334 5181414668