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30252780030 = 23511312957261
BaseRepresentation
bin11100001011001101…
…001100100111111110
32220002100221110101110
4130023031030213332
5443424202430110
621521542022450
72120456246604
oct341315144776
986070843343
1030252780030
11119149a6450
125a43717a26
132b1186bc95
14166dc49874
15bc0e0ba20
hex70b34c9fe

30252780030 has 64 divisors (see below), whose sum is σ = 81762379776. Its totient is φ = 7097424000.

The previous prime is 30252780029. The next prime is 30252780071. The reversal of 30252780030 is 3008725203.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 30252780030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1468401 + ... + 1488860.

It is an arithmetic number, because the mean of its divisors is an integer number (1277537184).

Almost surely, 230252780030 is an apocalyptic number.

30252780030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30252780030 is an abundant number, since it is smaller than the sum of its proper divisors (51509599746).

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

30252780030 is a wasteful number, since it uses less digits than its factorization.

30252780030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957313.

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 30252780030 in words is "thirty billion, two hundred fifty-two million, seven hundred eighty thousand, thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 31 33 55 62 66 93 110 155 165 186 310 330 341 465 682 930 1023 1705 2046 3410 5115 10230 2957261 5914522 8871783 14786305 17743566 29572610 32529871 44358915 65059742 88717830 91675091 97589613 162649355 183350182 195179226 275025273 325298710 458375455 487948065 550050546 916750910 975896130 1008426001 1375126365 2016852002 2750252730 3025278003 5042130005 6050556006 10084260010 15126390015 30252780030