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315068416 = 212136197
BaseRepresentation
bin10010110001111…
…001000000000000
3210221212010121121
4102301321000000
51121124142131
651133002024
710544015545
oct2261710000
9727763547
10315068416
11151936623
1289623314
1350375620
142dbb6bcc
151c9d8911
hex12c79000

315068416 has 104 divisors (see below), whose sum is σ = 696759224. Its totient is φ = 141557760.

The previous prime is 315068363. The next prime is 315068473. The reversal of 315068416 is 614860513.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5308416 + 309760000 = 2304^2 + 17600^2 .

It is a tau number, because it is divible by the number of its divisors (104).

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, 3248080 + ... + 3248176.

Almost surely, 2315068416 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 315068416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348379612).

315068416 is an abundant number, since it is smaller than the sum of its proper divisors (381690808).

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

315068416 is an equidigital number, since it uses as much as digits as its factorization.

315068416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 315068416 is about 17750.1666471050. The cubic root of 315068416 is about 680.4584682163.

The spelling of 315068416 in words is "three hundred fifteen million, sixty-eight thousand, four hundred sixteen".

Divisors: 1 2 4 8 13 16 26 32 52 61 64 97 104 122 128 194 208 244 256 388 416 488 512 776 793 832 976 1024 1261 1552 1586 1664 1952 2048 2522 3104 3172 3328 3904 4096 5044 5917 6208 6344 6656 7808 10088 11834 12416 12688 13312 15616 20176 23668 24832 25376 26624 31232 40352 47336 49664 50752 53248 62464 76921 80704 94672 99328 101504 124928 153842 161408 189344 198656 203008 249856 307684 322816 378688 397312 406016 615368 645632 757376 812032 1230736 1291264 1514752 1624064 2461472 2582528 3029504 3248128 4922944 5165056 6059008 9845888 12118016 19691776 24236032 39383552 78767104 157534208 315068416