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30628147546 = 217900827869
BaseRepresentation
bin11100100001100101…
…000111000101011010
32221001112021002211001
4130201211013011122
51000211301210141
622023111255214
72132664646543
oct344145070532
987045232731
1030628147546
1111a97877637
125b2937a50a
132b71567739
1416a7a3b4ca
15be3d56a31
hex72194715a

30628147546 has 8 divisors (see below), whose sum is σ = 48644704980. Its totient is φ = 14413245888.

The previous prime is 30628147531. The next prime is 30628147567. The reversal of 30628147546 is 64574182603.

It can be written as a sum of positive squares in 2 ways, for example, as 23458291921 + 7169855625 = 153161^2 + 84675^2 .

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 = 30628147496 and 30628147505.

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, 450413901 + ... + 450413968.

Almost surely, 230628147546 is an apocalyptic number.

30628147546 is a deficient number, since it is larger than the sum of its proper divisors (18016557434).

30628147546 is a wasteful number, since it uses less digits than its factorization.

30628147546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900827888.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 30628147546 in words is "thirty billion, six hundred twenty-eight million, one hundred forty-seven thousand, five hundred forty-six".

Divisors: 1 2 17 34 900827869 1801655738 15314073773 30628147546