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30509622052 = 2272132921073
BaseRepresentation
bin11100011010100000…
…111110001100100100
32220202021020101101221
4130122200332030210
5444440430401202
622003235030124
72130025336300
oct343240761444
986667211357
1030509622052
1111a36982688
125ab573b344
132b52b38a00
141695dc6d00
15bd8743037
hex71a83e324

30509622052 has 54 divisors (see below), whose sum is σ = 67254060258. Its totient is φ = 12069727488.

The previous prime is 30509622049. The next prime is 30509622083. The reversal of 30509622052 is 25022690503.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 158407396 + 30351214656 = 12586^2 + 174216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30509621999 and 30509622017.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 427413 + ... + 493660.

Almost surely, 230509622052 is an apocalyptic number.

It is an amenable number.

30509622052 is an abundant number, since it is smaller than the sum of its proper divisors (36744438206).

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

30509622052 is a wasteful number, since it uses less digits than its factorization.

30509622052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921117 (or 921095 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 30509622052 in words is "thirty billion, five hundred nine million, six hundred twenty-two thousand, fifty-two".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 169 182 196 338 364 637 676 1183 1274 2366 2548 4732 8281 16562 33124 921073 1842146 3684292 6447511 11973949 12895022 23947898 25790044 45132577 47895796 83817643 90265154 155661337 167635286 180530308 311322674 335270572 586723501 622645348 1089629359 1173447002 2179258718 2346894004 4358517436 7627405513 15254811026 30509622052