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30350406 = 23171491997
BaseRepresentation
bin111001111000…
…1110001000110
32010002221221010
41303301301012
530232203111
63002303050
7515655102
oct163616106
963087833
1030350406
111614a789
12a1b7a86
136398628
144060902
1529e7aa6
hex1cf1c46

30350406 has 32 divisors (see below), whose sum is σ = 64735200. Its totient is φ = 9453056.

The previous prime is 30350387. The next prime is 30350431. The reversal of 30350406 is 60405303.

It is a super-2 number, since 2×303504062 = 1842294288729672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14200 + ... + 16196.

It is an arithmetic number, because the mean of its divisors is an integer number (2022975).

Almost surely, 230350406 is an apocalyptic number.

30350406 is an abundant number, since it is smaller than the sum of its proper divisors (34384794).

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

30350406 is a wasteful number, since it uses less digits than its factorization.

30350406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30350406 is about 5509.1202564475. The cubic root of 30350406 is about 311.9283407091.

Adding to 30350406 its reverse (60405303), we get a palindrome (90755709).

The spelling of 30350406 in words is "thirty million, three hundred fifty thousand, four hundred six".

Divisors: 1 2 3 6 17 34 51 102 149 298 447 894 1997 2533 3994 5066 5991 7599 11982 15198 33949 67898 101847 203694 297553 595106 892659 1785318 5058401 10116802 15175203 30350406