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30472343 = 1122912097
BaseRepresentation
bin111010000111…
…1100010010111
32010100011012022
41310033202113
530300103333
63005043355
7520003436
oct164174227
963304168
1030472343
1116223360
12a25655b
13640bc95
14409311d
152a1dc98
hex1d0f897

30472343 has 8 divisors (see below), whose sum is σ = 33390480. Its totient is φ = 27578880.

The previous prime is 30472339. The next prime is 30472363. The reversal of 30472343 is 34327403.

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 30472343 - 22 = 30472339 is a prime.

It is a super-3 number, since 3×304723433 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472363) 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, 3530 + ... + 8567.

It is an arithmetic number, because the mean of its divisors is an integer number (4173810).

Almost surely, 230472343 is an apocalyptic number.

30472343 is a deficient number, since it is larger than the sum of its proper divisors (2918137).

30472343 is a wasteful number, since it uses less digits than its factorization.

30472343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12337.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 30472343 is about 5520.1759935712. The cubic root of 30472343 is about 312.3455210886.

Adding to 30472343 its reverse (34327403), we get a palindrome (64799746).

The spelling of 30472343 in words is "thirty million, four hundred seventy-two thousand, three hundred forty-three".

Divisors: 1 11 229 2519 12097 133067 2770213 30472343