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30378505352 = 23131006129033
BaseRepresentation
bin11100010010101100…
…110011010010001000
32220102010111222002212
4130102230303102020
5444203344132402
621542232444252
72123544014666
oct342254632210
986363458085
1030378505352
1111979968778
125a79849688
132b3191bb70
141682815c36
15bcbe93952
hex712b33488

30378505352 has 32 divisors (see below), whose sum is σ = 61349422680. Its totient is φ = 14018972160.

The previous prime is 30378505331. The next prime is 30378505361. The reversal of 30378505352 is 25350587303.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19893974116 + 10484531236 = 141046^2 + 102394^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031828 + ... + 1060860.

Almost surely, 230378505352 is an apocalyptic number.

It is an amenable number.

30378505352 is an abundant number, since it is smaller than the sum of its proper divisors (30970917328).

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

30378505352 is a wasteful number, since it uses less digits than its factorization.

30378505352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39113 (or 39109 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 41.

The spelling of 30378505352 in words is "thirty billion, three hundred seventy-eight million, five hundred five thousand, three hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 10061 20122 29033 40244 58066 80488 116132 130793 232264 261586 377429 523172 754858 1046344 1509716 3019432 292101013 584202026 1168404052 2336808104 3797313169 7594626338 15189252676 30378505352