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30712540234 = 219808224743
BaseRepresentation
bin11100100110100111…
…000010110001001010
32221021102001200211011
4130212213002301022
51000344402241414
622035324154134
72135041166425
oct344647026112
987242050734
1030712540234
1112030479062
125b5169894a
132b85ba533c
1416b4d289bc
15beb476dc4
hex7269c2c4a

30712540234 has 8 divisors (see below), whose sum is σ = 48493484640. Its totient is φ = 14548045356.

The previous prime is 30712540189. The next prime is 30712540259. The reversal of 30712540234 is 43204521703.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30712540196 and 30712540205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404112334 + ... + 404112409.

It is an arithmetic number, because the mean of its divisors is an integer number (6061685580).

Almost surely, 230712540234 is an apocalyptic number.

30712540234 is a deficient number, since it is larger than the sum of its proper divisors (17780944406).

30712540234 is a wasteful number, since it uses less digits than its factorization.

30712540234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808224764.

The product of its (nonzero) digits is 20160, while the sum is 31.

The spelling of 30712540234 in words is "thirty billion, seven hundred twelve million, five hundred forty thousand, two hundred thirty-four".

Divisors: 1 2 19 38 808224743 1616449486 15356270117 30712540234