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30118381921003 = 128949874685321
BaseRepresentation
bin1101101100100011110110…
…11101001010001011101011
310221122021210211011102212211
412312101323131022023223
512421424421232433003
6144020105454345551
76225660403203145
oct666217335121353
9127567724142784
1030118381921003
119662152456502
1234651891bb2b7
1313a61c733090c
14761a47853c95
153736acbad96d
hex1b647b74a2eb

30118381921003 has 8 divisors (see below), whose sum is σ = 30147798115440. Its totient is φ = 30088975109760.

The previous prime is 30118381920973. The next prime is 30118381921007. The reversal of 30118381921003 is 30012918381103.

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 30118381921003 - 233 = 30109791986411 is a prime.

It is a super-4 number, since 4×301183819210034 (a number of 55 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30118381921007) 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, 4085583 + ... + 8770903.

It is an arithmetic number, because the mean of its divisors is an integer number (3768474764430).

Almost surely, 230118381921003 is an apocalyptic number.

30118381921003 is a deficient number, since it is larger than the sum of its proper divisors (29416194437).

30118381921003 is a wasteful number, since it uses less digits than its factorization.

30118381921003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691597.

The product of its (nonzero) digits is 31104, while the sum is 40.

It can be divided in two parts, 3011838 and 1921003, that added together give a square (4932841 = 22212).

The spelling of 30118381921003 in words is "thirty trillion, one hundred eighteen billion, three hundred eighty-one million, nine hundred twenty-one thousand, three".

Divisors: 1 1289 4987 4685321 6428243 6039378769 23365695827 30118381921003