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30272697 = 35713372
BaseRepresentation
bin111001101111…
…0110010111001
32002222000100000
41303132302321
530222211242
63000503213
7515212410
oct163366271
962860300
1030272697
11160a7364
12a17ab09
13636c150
144040477
1529cea4c
hex1cdecb9

30272697 has 72 divisors (see below), whose sum is σ = 57360576. Its totient is φ = 15536448.

The previous prime is 30272689. The next prime is 30272701. The reversal of 30272697 is 79627203.

It is not a de Polignac number, because 30272697 - 23 = 30272689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30272617) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 818163 + ... + 818199.

Almost surely, 230272697 is an apocalyptic number.

30272697 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

30272697 is a deficient number, since it is larger than the sum of its proper divisors (27087879).

30272697 is an equidigital number, since it uses as much as digits as its factorization.

30272697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 30272697 is about 5502.0629767388. The cubic root of 30272697 is about 311.6618933500.

The spelling of 30272697 in words is "thirty million, two hundred seventy-two thousand, six hundred ninety-seven".

Divisors: 1 3 7 9 13 21 27 37 39 63 81 91 111 117 189 243 259 273 333 351 481 567 777 819 999 1053 1369 1443 1701 2331 2457 2997 3159 3367 4107 4329 6993 7371 8991 9583 10101 12321 12987 17797 20979 22113 28749 30303 36963 38961 53391 62937 86247 90909 110889 116883 124579 160173 258741 272727 332667 373737 480519 776223 818181 1121211 1441557 2328669 3363633 4324671 10090899 30272697