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30970526 = 219338011
BaseRepresentation
bin111011000100…
…1001010011110
32011021110120112
41312021022132
530412024101
63023450022
7524150036
oct166111236
964243515
1030970526
1116533684
12a456912
136554972
1441828c6
152abb6bb
hex1d8929e

30970526 has 8 divisors (see below), whose sum is σ = 46485624. Its totient is φ = 15475320.

The previous prime is 30970501. The next prime is 30970543. The reversal of 30970526 is 62507903.

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

It is a junction number, because it is equal to n+sod(n) for n = 30970492 and 30970501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140 + ... + 7871.

It is an arithmetic number, because the mean of its divisors is an integer number (5810703).

Almost surely, 230970526 is an apocalyptic number.

30970526 is a deficient number, since it is larger than the sum of its proper divisors (15515098).

30970526 is a wasteful number, since it uses less digits than its factorization.

30970526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9946.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 30970526 is about 5565.1168900572. The cubic root of 30970526 is about 314.0384755482.

The spelling of 30970526 in words is "thirty million, nine hundred seventy thousand, five hundred twenty-six".

Divisors: 1 2 1933 3866 8011 16022 15485263 30970526