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30420111 = 389113933
BaseRepresentation
bin111010000001…
…0110010001111
32010020111112210
41310002302033
530241420421
63004001503
7516365241
oct164026217
963214483
1030420111
1116198097
12a230293
1363c1287
14407c091
152a0d576
hex1d02c8f

30420111 has 8 divisors (see below), whose sum is σ = 41016240. Its totient is φ = 20052032.

The previous prime is 30420109. The next prime is 30420113. The reversal of 30420111 is 11102403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30420109) and next prime (30420113).

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 30420111 - 21 = 30420109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420113) 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, 56700 + ... + 57233.

It is an arithmetic number, because the mean of its divisors is an integer number (5127030).

Almost surely, 230420111 is an apocalyptic number.

30420111 is a deficient number, since it is larger than the sum of its proper divisors (10596129).

30420111 is a wasteful number, since it uses less digits than its factorization.

30420111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114025.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 30420111 is about 5515.4429559193. The cubic root of 30420111 is about 312.1669574038.

Adding to 30420111 its reverse (11102403), we get a palindrome (41522514).

The spelling of 30420111 in words is "thirty million, four hundred twenty thousand, one hundred eleven".

Divisors: 1 3 89 267 113933 341799 10140037 30420111