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30245784452 = 22136117355117
BaseRepresentation
bin11100001010110010…
…100000101110000100
32220001212210001020222
4130022302200232010
5443420410100302
621521132043512
72120342632412
oct341262405604
986055701228
1030245784452
1111910a58584
125a41303598
132b1028caa0
14166cd482b2
15bc04c8da2
hex70aca0b84

30245784452 has 48 divisors (see below), whose sum is σ = 58272072432. Its totient is φ = 13651130880.

The previous prime is 30245784451. The next prime is 30245784493. The reversal of 30245784452 is 25448754203.

It can be written as a sum of positive squares in 8 ways, for example, as 89378116 + 30156406336 = 9454^2 + 173656^2 .

It is not an unprimeable number, because it can be changed into a prime (30245784451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521198 + ... + 576314.

It is an arithmetic number, because the mean of its divisors is an integer number (1214001509).

Almost surely, 230245784452 is an apocalyptic number.

It is an amenable number.

30245784452 is a deficient number, since it is larger than the sum of its proper divisors (28026287980).

30245784452 is a wasteful number, since it uses less digits than its factorization.

30245784452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55368 (or 55366 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 44.

The spelling of 30245784452 in words is "thirty billion, two hundred forty-five million, seven hundred eighty-four thousand, four hundred fifty-two".

Divisors: 1 2 4 13 26 52 61 122 173 244 346 692 793 1586 2249 3172 4498 8996 10553 21106 42212 55117 110234 137189 220468 274378 548756 716521 1433042 2866084 3362137 6724274 9535241 13448548 19070482 38140964 43707781 87415562 123958133 174831124 247916266 495832532 581649701 1163299402 2326598804 7561446113 15122892226 30245784452