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313102240 = 25511414339
BaseRepresentation
bin10010101010011…
…000111110100000
3210211011020112021
4102222120332200
51120123232430
651022511224
710521216343
oct2252307640
9724136467
10313102240
11150813390
1288a35514
134cb376c9
142d82445a
151c74b07a
hex12a98fa0

313102240 has 96 divisors (see below), whose sum is σ = 826822080. Its totient is φ = 111052800.

The previous prime is 313102213. The next prime is 313102259. The reversal of 313102240 is 42201313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69991 + ... + 74329.

It is an arithmetic number, because the mean of its divisors is an integer number (8612730).

Almost surely, 2313102240 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 313102240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413411040).

313102240 is an abundant number, since it is smaller than the sum of its proper divisors (513719840).

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

313102240 is a wasteful number, since it uses less digits than its factorization.

313102240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406 (or 4398 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 313102240 is about 17694.6952502720. The cubic root of 313102240 is about 679.0400526433.

Adding to 313102240 its reverse (42201313), we get a palindrome (355303553).

The spelling of 313102240 in words is "three hundred thirteen million, one hundred two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 41 44 55 80 82 88 110 160 164 176 205 220 328 352 410 440 451 656 820 880 902 1312 1640 1760 1804 2255 3280 3608 4339 4510 6560 7216 8678 9020 14432 17356 18040 21695 34712 36080 43390 47729 69424 72160 86780 95458 138848 173560 177899 190916 238645 347120 355798 381832 477290 694240 711596 763664 889495 954580 1423192 1527328 1778990 1909160 1956889 2846384 3557980 3818320 3913778 5692768 7115960 7636640 7827556 9784445 14231920 15655112 19568890 28463840 31310224 39137780 62620448 78275560 156551120 313102240