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30934025 = 521279743
BaseRepresentation
bin111011000000…
…0010000001001
32011012121111122
41312000100021
530404342100
63023005025
7523635443
oct166002011
964177448
1030934025
1116509211
12a439775
136541175
144173493
152ab0985
hex1d80409

30934025 has 12 divisors (see below), whose sum is σ = 38664192. Its totient is φ = 24549840.

The previous prime is 30934003. The next prime is 30934031. The reversal of 30934025 is 52043903.

It is not a de Polignac number, because 30934025 - 28 = 30933769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30933985 and 30934003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1697 + ... + 8046.

It is an arithmetic number, because the mean of its divisors is an integer number (3222016).

Almost surely, 230934025 is an apocalyptic number.

It is an amenable number.

30934025 is a deficient number, since it is larger than the sum of its proper divisors (7730167).

30934025 is a wasteful number, since it uses less digits than its factorization.

30934025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9880 (or 9875 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 30934025 is about 5561.8364772798. The cubic root of 30934025 is about 313.9150547129.

Adding to 30934025 its reverse (52043903), we get a palindrome (82977928).

The spelling of 30934025 in words is "thirty million, nine hundred thirty-four thousand, twenty-five".

Divisors: 1 5 25 127 635 3175 9743 48715 243575 1237361 6186805 30934025