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30719104 = 271318461
BaseRepresentation
bin111010100101…
…1110010000000
32010210200200121
41311023302000
530331002404
63014230024
7522052033
oct165136200
963720617
1030719104
1116381799
12a355314
1364973b0
14411901a
152a6be54
hex1d4bc80

30719104 has 32 divisors (see below), whose sum is σ = 65909340. Its totient is φ = 14177280.

The previous prime is 30719093. The next prime is 30719111. The reversal of 30719104 is 40191703.

It can be written as a sum of positive squares in 2 ways, for example, as 24206400 + 6512704 = 4920^2 + 2552^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7567 + ... + 10894.

Almost surely, 230719104 is an apocalyptic number.

It is an amenable number.

30719104 is an abundant number, since it is smaller than the sum of its proper divisors (35190236).

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

30719104 is a wasteful number, since it uses less digits than its factorization.

30719104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18488 (or 18476 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 30719104 is about 5542.4817545933. The cubic root of 30719104 is about 313.1863663669.

The spelling of 30719104 in words is "thirty million, seven hundred nineteen thousand, one hundred four".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 416 832 1664 18461 36922 73844 147688 239993 295376 479986 590752 959972 1181504 1919944 2363008 3839888 7679776 15359552 30719104