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30470016 = 27379349
BaseRepresentation
bin111010000111…
…0111110000000
32010100001000010
41310032332000
530300020031
63005024520
7516663603
oct164167600
963301003
1030470016
1116221635
12a255140
13640abc5
14409233a
152a1d246
hex1d0ef80

30470016 has 32 divisors (see below), whose sum is σ = 80937000. Its totient is φ = 10156544.

The previous prime is 30470003. The next prime is 30470017. The reversal of 30470016 is 61007403.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 30469974 and 30470001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30470017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39291 + ... + 40058.

Almost surely, 230470016 is an apocalyptic number.

It is an amenable number.

30470016 is an abundant number, since it is smaller than the sum of its proper divisors (50466984).

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

30470016 is an equidigital number, since it uses as much as digits as its factorization.

30470016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79366 (or 79354 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 30470016 is about 5519.9652172817. The cubic root of 30470016 is about 312.3375702010.

Adding to 30470016 its reverse (61007403), we get a palindrome (91477419).

The spelling of 30470016 in words is "thirty million, four hundred seventy thousand, sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 79349 158698 238047 317396 476094 634792 952188 1269584 1904376 2539168 3808752 5078336 7617504 10156672 15235008 30470016