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312415104 = 2736712143
BaseRepresentation
bin10010100111110…
…001001110000000
3210202212022221210
4102213301032000
51114434240404
651000050120
710512325131
oct2247611600
9722768853
10312415104
11150394101
1288763940
134c956a11
142d6c5c88
151c662689
hex129f1380

312415104 has 64 divisors (see below), whose sum is σ = 842307840. Its totient is φ = 102575616.

The previous prime is 312415097. The next prime is 312415109. The reversal of 312415104 is 401514213.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312415109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19657 + ... + 31799.

It is an arithmetic number, because the mean of its divisors is an integer number (13161060).

Almost surely, 2312415104 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 312415104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421153920).

312415104 is an abundant number, since it is smaller than the sum of its proper divisors (529892736).

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

312415104 is a wasteful number, since it uses less digits than its factorization.

312415104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12227 (or 12215 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 312415104 is about 17675.2681450664. The cubic root of 312415104 is about 678.5429470636.

Adding to 312415104 its reverse (401514213), we get a palindrome (713929317).

It can be divided in two parts, 312 and 415104, that added together give a triangular number (415416 = T911).

The spelling of 312415104 in words is "three hundred twelve million, four hundred fifteen thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 67 96 128 134 192 201 268 384 402 536 804 1072 1608 2144 3216 4288 6432 8576 12143 12864 24286 25728 36429 48572 72858 97144 145716 194288 291432 388576 582864 777152 813581 1165728 1554304 1627162 2331456 2440743 3254324 4662912 4881486 6508648 9762972 13017296 19525944 26034592 39051888 52069184 78103776 104138368 156207552 312415104