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30935388 = 223111311789
BaseRepresentation
bin111011000000…
…0100101011100
32011012200101010
41312000211130
530404413023
63023015220
7523642431
oct166004534
964180333
1030935388
111650a240
12a43a510
136541983
144173b88
152ab1093
hex1d8095c

30935388 has 48 divisors (see below), whose sum is σ = 79390080. Its totient is φ = 9297600.

The previous prime is 30935327. The next prime is 30935407. The reversal of 30935388 is 88353903.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 16398 + ... + 18186.

It is an arithmetic number, because the mean of its divisors is an integer number (1653960).

Almost surely, 230935388 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 30935388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39695040).

30935388 is an abundant number, since it is smaller than the sum of its proper divisors (48454692).

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

30935388 is a wasteful number, since it uses less digits than its factorization.

30935388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 30935388 is about 5561.9590074002. The cubic root of 30935388 is about 313.9196651695.

The spelling of 30935388 in words is "thirty million, nine hundred thirty-five thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 131 132 262 393 524 786 1441 1572 1789 2882 3578 4323 5367 5764 7156 8646 10734 17292 19679 21468 39358 59037 78716 118074 234359 236148 468718 703077 937436 1406154 2577949 2812308 5155898 7733847 10311796 15467694 30935388