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30021101316 = 22321943890499
BaseRepresentation
bin11011111101011001…
…011010011100000100
32212111012222221221100
4123331121122130010
5442440400220231
621442544220100
72111644102503
oct337531323404
985435887840
1030021101316
1111806146838
12599a00a630
132aa587289b
14164b17c83a
15baa8e61e6
hex6fd65a704

30021101316 has 36 divisors (see below), whose sum is σ = 79880710000. Its totient is φ = 9480347568.

The previous prime is 30021101287. The next prime is 30021101317. The reversal of 30021101316 is 61310112003.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30021101317) 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 11 ways as a sum of consecutive naturals, for example, 21944566 + ... + 21945933.

Almost surely, 230021101316 is an apocalyptic number.

30021101316 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30021101316 is an abundant number, since it is smaller than the sum of its proper divisors (49859608684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30021101316 is a wasteful number, since it uses less digits than its factorization.

30021101316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43890528 (or 43890523 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30021101316 its reverse (61310112003), we get a palindrome (91331213319).

The spelling of 30021101316 in words is "thirty billion, twenty-one million, one hundred one thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 43890499 87780998 131671497 175561996 263342994 395014491 526685988 790028982 833919481 1580057964 1667838962 2501758443 3335677924 5003516886 7505275329 10007033772 15010550658 30021101316