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315100404 = 223229329873
BaseRepresentation
bin10010110010000…
…000110011110100
3210221220202111100
4102302000303310
51121131203104
651133410100
710544211033
oct2262006364
9727822440
10315100404
11151958663
1289639930
1350387058
142dbc471a
151c9e3139
hex12c80cf4

315100404 has 36 divisors (see below), whose sum is σ = 799248996. Its totient is φ = 104671488.

The previous prime is 315100393. The next prime is 315100417. The reversal of 315100404 is 404001513.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 300675600 + 14424804 = 17340^2 + 3798^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4389 + ... + 25484.

It is an arithmetic number, because the mean of its divisors is an integer number (22201361).

Almost surely, 2315100404 is an apocalyptic number.

It is an amenable number.

315100404 is an abundant number, since it is smaller than the sum of its proper divisors (484148592).

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

315100404 is a wasteful number, since it uses less digits than its factorization.

315100404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30176 (or 30171 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 315100404 is about 17751.0676861985. The cubic root of 315100404 is about 680.4814957746.

Adding to 315100404 its reverse (404001513), we get a palindrome (719101917).

The spelling of 315100404 in words is "three hundred fifteen million, one hundred thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 293 586 879 1172 1758 2637 3516 5274 10548 29873 59746 89619 119492 179238 268857 358476 537714 1075428 8752789 17505578 26258367 35011156 52516734 78775101 105033468 157550202 315100404