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312030404 = 227107104149
BaseRepresentation
bin10010100110010…
…011010011000100
3210202010210020122
4102212103103010
51114334433104
650543521112
710506133430
oct2246232304
9722123218
10312030404
11150151074
12885b9198
134c85089a
142d6259c0
151c5d86be
hex129934c4

312030404 has 24 divisors (see below), whose sum is σ = 629899200. Its totient is φ = 132476256.

The previous prime is 312030347. The next prime is 312030413. The reversal of 312030404 is 404030213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49079 + ... + 55070.

It is an arithmetic number, because the mean of its divisors is an integer number (26245800).

Almost surely, 2312030404 is an apocalyptic number.

It is an amenable number.

312030404 is an abundant number, since it is smaller than the sum of its proper divisors (317868796).

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

312030404 is a wasteful number, since it uses less digits than its factorization.

312030404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104267 (or 104265 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 312030404 is about 17664.3823554632. The cubic root of 312030404 is about 678.2643191677.

Adding to 312030404 its reverse (404030213), we get a palindrome (716060617).

The spelling of 312030404 in words is "three hundred twelve million, thirty thousand, four hundred four".

Divisors: 1 2 4 7 14 28 107 214 428 749 1498 2996 104149 208298 416596 729043 1458086 2916172 11143943 22287886 44575772 78007601 156015202 312030404