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30619424534 = 215309712267
BaseRepresentation
bin11100100001000011…
…110101011100010110
32221000220211221002112
4130201003311130112
51000202033041114
622022200311022
72132530546166
oct344103653426
987026757075
1030619424534
1111a92959936
125b26472472
132b6c8021aa
1416a680a5a6
15be31d213e
hex7210f5716

30619424534 has 4 divisors (see below), whose sum is σ = 45929136804. Its totient is φ = 15309712266.

The previous prime is 30619424531. The next prime is 30619424551. The reversal of 30619424534 is 43542491603.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×306194245342 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30619424491 and 30619424500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30619424531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7654856132 + ... + 7654856135.

It is an arithmetic number, because the mean of its divisors is an integer number (11482284201).

Almost surely, 230619424534 is an apocalyptic number.

30619424534 is a deficient number, since it is larger than the sum of its proper divisors (15309712270).

30619424534 is a wasteful number, since it uses less digits than its factorization.

30619424534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15309712269.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 30619424534 in words is "thirty billion, six hundred nineteen million, four hundred twenty-four thousand, five hundred thirty-four".

Divisors: 1 2 15309712267 30619424534