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315494144 = 28733593
BaseRepresentation
bin10010110011100…
…000111100000000
3210222122202121022
4102303200330000
51121231303034
651150045012
710550441000
oct2263407400
9728582538
10315494144
111520a7469
12897a9768
1350494334
142dc88000
151ca6eb2e
hex12ce0f00

315494144 has 72 divisors (see below), whose sum is σ = 734613600. Its totient is φ = 135174144.

The previous prime is 315494131. The next prime is 315494147. The reversal of 315494144 is 441494513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315494147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86012 + ... + 89604.

Almost surely, 2315494144 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 315494144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367306800).

315494144 is an abundant number, since it is smaller than the sum of its proper divisors (419119456).

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

315494144 is an frugal number, since it uses more digits than its factorization.

315494144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630 (or 3602 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 315494144 is about 17762.1548242323. The cubic root of 315494144 is about 680.7648142110.

The spelling of 315494144 in words is "three hundred fifteen million, four hundred ninety-four thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 343 392 448 686 784 896 1372 1568 1792 2744 3136 3593 5488 6272 7186 10976 12544 14372 21952 25151 28744 43904 50302 57488 87808 100604 114976 176057 201208 229952 352114 402416 459904 704228 804832 919808 1232399 1408456 1609664 2464798 2816912 3219328 4929596 5633824 6438656 9859192 11267648 19718384 22535296 39436768 45070592 78873536 157747072 315494144