Search a number
-
+
315778093696 = 2713189770489
BaseRepresentation
bin1001001100001011101…
…01110101001010000000
31010012002010012020022201
410212011311311022000
520133203142444241
6401022204242544
731546163336452
oct4460565651200
91105063166281
10315778093696
11111a1455765a
1251249540454
1323a1592a820
14113d882c2d2
15833296e931
hex4985d75280

315778093696 has 32 divisors (see below), whose sum is σ = 677480649300. Its totient is φ = 145743734784.

The previous prime is 315778093681. The next prime is 315778093717. The reversal of 315778093696 is 696390877513.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 312409452096 + 3368641600 = 558936^2 + 58040^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94883581 + ... + 94886908.

Almost surely, 2315778093696 is an apocalyptic number.

It is an amenable number.

315778093696 is an abundant number, since it is smaller than the sum of its proper divisors (361702555604).

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

315778093696 is a wasteful number, since it uses less digits than its factorization.

315778093696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189770516 (or 189770504 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 64.

The spelling of 315778093696 in words is "three hundred fifteen billion, seven hundred seventy-eight million, ninety-three thousand, six hundred ninety-six".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 416 832 1664 189770489 379540978 759081956 1518163912 2467016357 3036327824 4934032714 6072655648 9868065428 12145311296 19736130856 24290622592 39472261712 78944523424 157889046848 315778093696