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5181209995 = 513355922397
BaseRepresentation
bin1001101001101001…
…01111110110001011
3111101002100201221111
410310310233312023
541102342204440
62214043151151
7242252362333
oct46464576613
914332321844
105181209995
112219726835
1210072154b7
13647567440
143721920c3
15204ced4ea
hex134d2fd8b

5181209995 has 16 divisors (see below), whose sum is σ = 6697897920. Its totient is φ = 3824878464.

The previous prime is 5181209993. The next prime is 5181210007. The reversal of 5181209995 is 5999021815.

It is a cyclic number.

It is not a de Polignac number, because 5181209995 - 21 = 5181209993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5181209993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220137 + ... + 242533.

It is an arithmetic number, because the mean of its divisors is an integer number (418618620).

Almost surely, 25181209995 is an apocalyptic number.

5181209995 is a deficient number, since it is larger than the sum of its proper divisors (1516687925).

5181209995 is a wasteful number, since it uses less digits than its factorization.

5181209995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25974.

The product of its (nonzero) digits is 291600, while the sum is 49.

The square root of 5181209995 is about 71980.6223576874. The cubic root of 5181209995 is about 1730.3889438128.

The spelling of 5181209995 in words is "five billion, one hundred eighty-one million, two hundred nine thousand, nine hundred ninety-five".

Divisors: 1 5 13 65 3559 17795 22397 46267 111985 231335 291161 1455805 79710923 398554615 1036241999 5181209995