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30021032130 = 2354951202121
BaseRepresentation
bin11011111101011001…
…001001100011000010
32212111012212110000220
4123331121021203002
5442440341012010
621442542523510
72111643364005
oct337531114302
985435773026
1030021032130
11118060a9861
125999b96596
132aa584a24b
14164b16153c
15baa8d0970
hex6fd6498c2

30021032130 has 32 divisors (see below), whose sum is σ = 72065386368. Its totient is φ = 8003952000.

The previous prime is 30021032123. The next prime is 30021032143. The reversal of 30021032130 is 3123012003.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47470 + ... + 249590.

It is an arithmetic number, because the mean of its divisors is an integer number (2252043324).

Almost surely, 230021032130 is an apocalyptic number.

30021032130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30021032130 is an abundant number, since it is smaller than the sum of its proper divisors (42044354238).

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

30021032130 is a wasteful number, since it uses less digits than its factorization.

30021032130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207082.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30021032130 its reverse (3123012003), we get a palindrome (33144044133).

The spelling of 30021032130 in words is "thirty billion, twenty-one million, thirty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 4951 9902 14853 24755 29706 49510 74265 148530 202121 404242 606363 1010605 1212726 2021210 3031815 6063630 1000701071 2001402142 3002103213 5003505355 6004206426 10007010710 15010516065 30021032130