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30682692 = 22331272237
BaseRepresentation
bin111010100001…
…0111001000100
32010201211202000
41311002321010
530323321232
63013345300
7521540625
oct165027104
963654660
1030682692
11163573a7
12a338230
136483951
144109a4c
152a6127c
hex1d42e44

30682692 has 48 divisors (see below), whose sum is σ = 80209920. Its totient is φ = 10142496.

The previous prime is 30682649. The next prime is 30682711. The reversal of 30682692 is 29628603.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12598 + ... + 14834.

It is an arithmetic number, because the mean of its divisors is an integer number (1671040).

Almost surely, 230682692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30682692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40104960).

30682692 is an abundant number, since it is smaller than the sum of its proper divisors (49527228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30682692 is a wasteful number, since it uses less digits than its factorization.

30682692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377 (or 2369 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 30682692 is about 5539.1959705358. The cubic root of 30682692 is about 313.0625753144.

The spelling of 30682692 in words is "thirty million, six hundred eighty-two thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 127 254 381 508 762 1143 1524 2237 2286 3429 4474 4572 6711 6858 8948 13422 13716 20133 26844 40266 60399 80532 120798 241596 284099 568198 852297 1136396 1704594 2556891 3409188 5113782 7670673 10227564 15341346 30682692