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312019472 = 24237511129
BaseRepresentation
bin10010100110010…
…000101000010000
3210202010020020202
4102212100220100
51114334110342
650543354332
710506056522
oct2246205020
9722106222
10312019472
11150143936
12885b29a8
134c84890b
142d621a12
151c5d5332
hex12990a10

312019472 has 40 divisors (see below), whose sum is σ = 632221440. Its totient is φ = 148896000.

The previous prime is 312019423. The next prime is 312019489. The reversal of 312019472 is 274910213.

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, 275804 + ... + 276932.

It is an arithmetic number, because the mean of its divisors is an integer number (15805536).

Almost surely, 2312019472 is an apocalyptic number.

It is an amenable number.

312019472 is an abundant number, since it is smaller than the sum of its proper divisors (320201968).

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

312019472 is a wasteful number, since it uses less digits than its factorization.

312019472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 312019472 is about 17664.0729165162. The cubic root of 312019472 is about 678.2563980677.

Adding to 312019472 its reverse (274910213), we get a palindrome (586929685).

The spelling of 312019472 in words is "three hundred twelve million, nineteen thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 23 46 92 184 368 751 1129 1502 2258 3004 4516 6008 9032 12016 17273 18064 25967 34546 51934 69092 103868 138184 207736 276368 415472 847879 1695758 3391516 6783032 13566064 19501217 39002434 78004868 156009736 312019472