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395313152 = 2201329
BaseRepresentation
bin10111100100000…
…000000000000000
31000112211222200212
4113210000000000
51302200010102
6103120533252
712540051323
oct2744000000
91015758625
10395313152
11193164693
12b0481228
1363b90210
143a7047ba
1524a89c52
hex17900000

395313152 has 84 divisors (see below), whose sum is σ = 880803420. Its totient is φ = 176160768.

The previous prime is 395313151. The next prime is 395313173. The reversal of 395313152 is 251313593.

It can be written as a sum of positive squares in 2 ways, for example, as 126877696 + 268435456 = 11264^2 + 16384^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (395313151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13631474 + ... + 13631502.

It is an arithmetic number, because the mean of its divisors is an integer number (10485755).

Almost surely, 2395313152 is an apocalyptic number.

395313152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395313152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440401710).

395313152 is an abundant number, since it is smaller than the sum of its proper divisors (485490268).

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

395313152 is an frugal number, since it uses more digits than its factorization.

395313152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 44 counting only the distinct ones).

The product of its digits is 12150, while the sum is 32.

The square root of 395313152 is about 19882.4835470823. The cubic root of 395313152 is about 733.9172370656.

The spelling of 395313152 in words is "three hundred ninety-five million, three hundred thirteen thousand, one hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 29 32 52 58 64 104 116 128 208 232 256 377 416 464 512 754 832 928 1024 1508 1664 1856 2048 3016 3328 3712 4096 6032 6656 7424 8192 12064 13312 14848 16384 24128 26624 29696 32768 48256 53248 59392 65536 96512 106496 118784 131072 193024 212992 237568 262144 386048 425984 475136 524288 772096 851968 950272 1048576 1544192 1703936 1900544 3088384 3407872 3801088 6176768 6815744 7602176 12353536 13631488 15204352 24707072 30408704 49414144 98828288 197656576 395313152