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313304420 = 2251113109547
BaseRepresentation
bin10010101011001…
…010010101100100
3210211112111212102
4102223022111210
51120201220140
651031111232
710523020652
oct2253122544
9724474772
10313304420
11150941280
1288b12518
134cba8740
142d877dd2
151c78ae15
hex12aca564

313304420 has 48 divisors (see below), whose sum is σ = 772970688. Its totient is φ = 105164160.

The previous prime is 313304417. The next prime is 313304423. The reversal of 313304420 is 24403313.

It is an interprime number because it is at equal distance from previous prime (313304417) and next prime (313304423).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 313304392 and 313304401.

It is not an unprimeable number, because it can be changed into a prime (313304423) by changing a digit.

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, 51914 + ... + 57633.

It is an arithmetic number, because the mean of its divisors is an integer number (16103556).

Almost surely, 2313304420 is an apocalyptic number.

It is an amenable number.

313304420 is an abundant number, since it is smaller than the sum of its proper divisors (459666268).

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

313304420 is a wasteful number, since it uses less digits than its factorization.

313304420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109580 (or 109578 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 313304420 is about 17700.4073399456. The cubic root of 313304420 is about 679.1861803937.

Adding to 313304420 its reverse (24403313), we get a palindrome (337707733).

The spelling of 313304420 in words is "three hundred thirteen million, three hundred four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 109547 219094 438188 547735 1095470 1205017 1424111 2190940 2410034 2848222 4820068 5696444 6025085 7120555 12050170 14241110 15665221 24100340 28482220 31330442 62660884 78326105 156652210 313304420