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30935212 = 22711472137
BaseRepresentation
bin111011000000…
…0100010101100
32011012200010121
41312000202230
530404411322
63023014324
7523642060
oct166004254
964180117
1030935212
111650a0a0
12a43a3a4
136541879
144173aa0
152ab0ec7
hex1d808ac

30935212 has 48 divisors (see below), whose sum is σ = 68963328. Its totient is φ = 11790720.

The previous prime is 30935209. The next prime is 30935227. The reversal of 30935212 is 21253903.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13408 + ... + 15544.

It is an arithmetic number, because the mean of its divisors is an integer number (1436736).

Almost surely, 230935212 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 30935212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34481664).

30935212 is an abundant number, since it is smaller than the sum of its proper divisors (38028116).

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

30935212 is a wasteful number, since it uses less digits than its factorization.

30935212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206 (or 2204 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 30935212 is about 5561.9431856142. The cubic root of 30935212 is about 313.9190698430.

The spelling of 30935212 in words is "thirty million, nine hundred thirty-five thousand, two hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 47 77 94 154 188 308 329 517 658 1034 1316 2068 2137 3619 4274 7238 8548 14476 14959 23507 29918 47014 59836 94028 100439 164549 200878 329098 401756 658196 703073 1104829 1406146 2209658 2812292 4419316 7733803 15467606 30935212