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30680086 = 229528967
BaseRepresentation
bin111010100001…
…0010000010110
32010201201011111
41311002100112
530323230321
63013325234
7521530213
oct165022026
963651144
1030680086
1116355448
12a33681a
1364826c8
144108b0a
152a605e1
hex1d42416

30680086 has 8 divisors (see below), whose sum is σ = 47607120. Its totient is φ = 14811048.

The previous prime is 30680077. The next prime is 30680101. The reversal of 30680086 is 68008603.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264426 + ... + 264541.

It is an arithmetic number, because the mean of its divisors is an integer number (5950890).

Almost surely, 230680086 is an apocalyptic number.

30680086 is a deficient number, since it is larger than the sum of its proper divisors (16927034).

30680086 is a wasteful number, since it uses less digits than its factorization.

30680086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528998.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 30680086 is about 5538.9607328451. The cubic root of 30680086 is about 313.0537118574.

Adding to 30680086 its reverse (68008603), we get a palindrome (98688689).

The spelling of 30680086 in words is "thirty million, six hundred eighty thousand, eighty-six".

Divisors: 1 2 29 58 528967 1057934 15340043 30680086