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30430426 = 21323151337
BaseRepresentation
bin111010000010…
…1010011011010
32010021000200211
41310011103122
530242233201
63004121334
7516440305
oct164052332
963230624
1030430426
11161a4914
12a23624a
1363c5b90
144081b3c
152a11651
hex1d054da

30430426 has 32 divisors (see below), whose sum is σ = 51787008. Its totient is φ = 13305600.

The previous prime is 30430409. The next prime is 30430429. The reversal of 30430426 is 62403403.

It is a junction number, because it is equal to n+sod(n) for n = 30430397 and 30430406.

It is not an unprimeable number, because it can be changed into a prime (30430429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90130 + ... + 90466.

It is an arithmetic number, because the mean of its divisors is an integer number (1618344).

Almost surely, 230430426 is an apocalyptic number.

30430426 is a deficient number, since it is larger than the sum of its proper divisors (21356582).

30430426 is a wasteful number, since it uses less digits than its factorization.

30430426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 30430426 is about 5516.3779783477. The cubic root of 30430426 is about 312.2022371160.

Adding to 30430426 its reverse (62403403), we get a palindrome (92833829).

The spelling of 30430426 in words is "thirty million, four hundred thirty thousand, four hundred twenty-six".

Divisors: 1 2 13 23 26 46 151 299 302 337 598 674 1963 3473 3926 4381 6946 7751 8762 15502 45149 50887 90298 100763 101774 201526 661531 1170401 1323062 2340802 15215213 30430426