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30470307 = 3721789137
BaseRepresentation
bin111010000111…
…1000010100011
32010100001101220
41310033002203
530300022212
63005030123
7516664500
oct164170243
963301356
1030470307
111622187a
12a255343
13640b08a
1440924a7
152a1d38c
hex1d0f0a3

30470307 has 48 divisors (see below), whose sum is σ = 50971680. Its totient is φ = 16084992.

The previous prime is 30470291. The next prime is 30470309. The reversal of 30470307 is 70307403.

It is not a de Polignac number, because 30470307 - 24 = 30470291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30470309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222343 + ... + 222479.

It is an arithmetic number, because the mean of its divisors is an integer number (1061910).

Almost surely, 230470307 is an apocalyptic number.

30470307 is a deficient number, since it is larger than the sum of its proper divisors (20501373).

30470307 is a wasteful number, since it uses less digits than its factorization.

30470307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 30470307 is about 5519.9915760805. The cubic root of 30470307 is about 312.3385645112.

The spelling of 30470307 in words is "thirty million, four hundred seventy thousand, three hundred seven".

Divisors: 1 3 7 17 21 49 51 89 119 137 147 267 357 411 623 833 959 1513 1869 2329 2499 2877 4361 4539 6713 6987 10591 12193 13083 16303 20139 31773 36579 48909 74137 85351 114121 207281 222411 256053 342363 597457 621843 1450967 1792371 4352901 10156769 30470307