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312490368 = 2732487557
BaseRepresentation
bin10010101000000…
…011100110000000
3210210000011012100
4102220003212000
51114444142433
651001430400
710513060431
oct2250034600
9723004170
10312490368
11150435703
128879b400
134c982058
142d705488
151c679b13
hex12a03980

312490368 has 96 divisors (see below), whose sum is σ = 902687760. Its totient is φ = 103762944.

The previous prime is 312490333. The next prime is 312490369. The reversal of 312490368 is 863094213.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312490369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560746 + ... + 561302.

Almost surely, 2312490368 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 312490368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451343880).

312490368 is an abundant number, since it is smaller than the sum of its proper divisors (590197392).

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

312490368 is a wasteful number, since it uses less digits than its factorization.

312490368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 312490368 is about 17677.3970934637. The cubic root of 312490368 is about 678.5974320050.

The spelling of 312490368 in words is "three hundred twelve million, four hundred ninety thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 384 487 557 576 974 1114 1152 1461 1671 1948 2228 2922 3342 3896 4383 4456 5013 5844 6684 7792 8766 8912 10026 11688 13368 15584 17532 17824 20052 23376 26736 31168 35064 35648 40104 46752 53472 62336 70128 71296 80208 93504 106944 140256 160416 187008 213888 271259 280512 320832 542518 561024 641664 813777 1085036 1627554 2170072 2441331 3255108 4340144 4882662 6510216 8680288 9765324 13020432 17360576 19530648 26040864 34721152 39061296 52081728 78122592 104163456 156245184 312490368