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30212041685 = 57863201191
BaseRepresentation
bin11100001000110001…
…110010101111010101
32212222112021201212212
4130020301302233111
5443333240313220
621513524523205
72116453055120
oct341061625725
985875251785
1030212041685
11118a3a010a1
125a31b50505
132b062a7357
1416686833b7
15bbc5610c5
hex708c72bd5

30212041685 has 8 divisors (see below), whose sum is σ = 41433657216. Its totient is φ = 20716828560.

The previous prime is 30212041663. The next prime is 30212041693. The reversal of 30212041685 is 58614021203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30212041685 - 28 = 30212041429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431600561 + ... + 431600630.

It is an arithmetic number, because the mean of its divisors is an integer number (5179207152).

Almost surely, 230212041685 is an apocalyptic number.

30212041685 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30212041685 is a deficient number, since it is larger than the sum of its proper divisors (11221615531).

30212041685 is an equidigital number, since it uses as much as digits as its factorization.

30212041685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863201203.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 30212041685 its reverse (58614021203), we get a palindrome (88826062888).

The spelling of 30212041685 in words is "thirty billion, two hundred twelve million, forty-one thousand, six hundred eighty-five".

Divisors: 1 5 7 35 863201191 4316005955 6042408337 30212041685