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30031220214 = 23210116518823
BaseRepresentation
bin11011111110000000…
…000000110111110110
32212111221001001110100
4123332000000313312
5443000443021324
621443545134530
72112126105612
oct337600006766
985457031410
1030031220214
1111810928266
1259a148a446
132aa79a65b8
14164c654342
15bab7444c9
hex6fe000df6

30031220214 has 24 divisors (see below), whose sum is σ = 65711881872. Its totient is φ = 9911293200.

The previous prime is 30031220179. The next prime is 30031220231. The reversal of 30031220214 is 41202213003.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8257594 + ... + 8261229.

It is an arithmetic number, because the mean of its divisors is an integer number (2737995078).

Almost surely, 230031220214 is an apocalyptic number.

30031220214 is an abundant number, since it is smaller than the sum of its proper divisors (35680661658).

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

30031220214 is a wasteful number, since it uses less digits than its factorization.

30031220214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16518932 (or 16518929 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30031220214 its reverse (41202213003), we get a palindrome (71233433217).

The spelling of 30031220214 in words is "thirty billion, thirty-one million, two hundred twenty thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 101 202 303 606 909 1818 16518823 33037646 49556469 99112938 148669407 297338814 1668401123 3336802246 5005203369 10010406738 15015610107 30031220214