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30454121 = 314612131
BaseRepresentation
bin111010000101…
…1000101101001
32010022020012102
41310023011221
530244012441
63004423145
7516566345
oct164130551
963266172
1030454121
11162106a5
12a247ab5
1364038b9
14408a625
152a1869b
hex1d0b169

30454121 has 8 divisors (see below), whose sum is σ = 31519488. Its totient is φ = 29394000.

The previous prime is 30454117. The next prime is 30454153. The reversal of 30454121 is 12145403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30454121 - 22 = 30454117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30454093 and 30454102.

It is not an unprimeable number, because it can be changed into a prime (30451121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13226 + ... + 15356.

It is an arithmetic number, because the mean of its divisors is an integer number (3939936).

Almost surely, 230454121 is an apocalyptic number.

30454121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30454121 is a deficient number, since it is larger than the sum of its proper divisors (1065367).

30454121 is a wasteful number, since it uses less digits than its factorization.

30454121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 30454121 is about 5518.5252558994. The cubic root of 30454121 is about 312.2832493761.

Adding to 30454121 its reverse (12145403), we get a palindrome (42599524).

The spelling of 30454121 in words is "thirty million, four hundred fifty-four thousand, one hundred twenty-one".

Divisors: 1 31 461 2131 14291 66061 982391 30454121