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307084212 = 22328530117
BaseRepresentation
bin10010010011011…
…011101110110100
3210101211111100100
4102103123232310
51112103143322
650245514100
710416113151
oct2223335664
9711744310
10307084212
11148382a06
1286a12930
134b80b446
142cad9228
151be5cdac
hex124dbbb4

307084212 has 18 divisors (see below), whose sum is σ = 776240738. Its totient is φ = 102361392.

The previous prime is 307084177. The next prime is 307084241. The reversal of 307084212 is 212480703.

It can be written as a sum of positive squares in only one way, i.e., 188622756 + 118461456 = 13734^2 + 10884^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4265023 + ... + 4265094.

Almost surely, 2307084212 is an apocalyptic number.

It is an amenable number.

307084212 is an abundant number, since it is smaller than the sum of its proper divisors (469156526).

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

307084212 is a wasteful number, since it uses less digits than its factorization.

307084212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8530127 (or 8530122 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 307084212 is about 17523.8184195112. The cubic root of 307084212 is about 674.6613478197.

The spelling of 307084212 in words is "three hundred seven million, eighty-four thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 8530117 17060234 25590351 34120468 51180702 76771053 102361404 153542106 307084212