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313020200 = 23522921861
BaseRepresentation
bin10010101010000…
…100111100101000
3210211000001222202
4102222010330220
51120113121300
651021035332
710520425223
oct2252047450
9724001882
10313020200
11150767789
12889b5b48
134cb0926c
142d8025ba
151c731ad5
hex12a84f28

313020200 has 72 divisors (see below), whose sum is σ = 754137930. Its totient is φ = 120825600.

The previous prime is 313020187. The next prime is 313020217. The reversal of 313020200 is 2020313.

It can be written as a sum of positive squares in 9 ways, for example, as 3189796 + 309830404 = 1786^2 + 17602^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 167270 + ... + 169130.

Almost surely, 2313020200 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 313020200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377068965).

313020200 is an abundant number, since it is smaller than the sum of its proper divisors (441117730).

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

313020200 is a wasteful number, since it uses less digits than its factorization.

313020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 313020200 is about 17692.3768894968. The cubic root of 313020200 is about 678.9807394168.

Adding to 313020200 its reverse (2020313), we get a palindrome (315040513).

The spelling of 313020200 in words is "three hundred thirteen million, twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 29 40 50 58 100 116 145 200 232 290 580 725 841 1160 1450 1682 1861 2900 3364 3722 4205 5800 6728 7444 8410 9305 14888 16820 18610 21025 33640 37220 42050 46525 53969 74440 84100 93050 107938 168200 186100 215876 269845 372200 431752 539690 1079380 1349225 1565101 2158760 2698450 3130202 5396900 6260404 7825505 10793800 12520808 15651010 31302020 39127525 62604040 78255050 156510100 313020200