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30829960 = 23571031069
BaseRepresentation
bin111010110011…
…0110110001000
32011000022202101
41311212312020
530343024320
63020443144
7523023160
oct165466610
964008671
1030829960
1116448007
12a3a94b4
1365059a5
1441475a0
152a8ec0a
hex1d66d88

30829960 has 64 divisors (see below), whose sum is σ = 80121600. Its totient is φ = 10457856.

The previous prime is 30829957. The next prime is 30829963. The reversal of 30829960 is 6992803.

It is an interprime number because it is at equal distance from previous prime (30829957) and next prime (30829963).

It is not an unprimeable number, because it can be changed into a prime (30829963) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 28306 + ... + 29374.

It is an arithmetic number, because the mean of its divisors is an integer number (1251900).

Almost surely, 230829960 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 30829960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40060800).

30829960 is an abundant number, since it is smaller than the sum of its proper divisors (49291640).

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

30829960 is a wasteful number, since it uses less digits than its factorization.

30829960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 30829960 is about 5552.4733227635. The cubic root of 30829960 is about 313.5626458788.

The spelling of 30829960 in words is "thirty million, eight hundred twenty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 103 140 206 280 412 515 721 824 1030 1069 1442 2060 2138 2884 3605 4120 4276 5345 5768 7210 7483 8552 10690 14420 14966 21380 28840 29932 37415 42760 59864 74830 110107 149660 220214 299320 440428 550535 770749 880856 1101070 1541498 2202140 3082996 3853745 4404280 6165992 7707490 15414980 30829960