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310603072 = 26133472
BaseRepresentation
bin10010100000110…
…110110101000000
3210122110021022111
4102200312311000
51114003244242
650453145104
710461040213
oct2240666500
9718407274
10310603072
1114a36675a
128802b194
134c471000
142d37377a
151c405817
hex12836d40

310603072 has 84 divisors (see below), whose sum is σ = 682200820. Its totient is φ = 140305152.

The previous prime is 310603067. The next prime is 310603091. The reversal of 310603072 is 270306013.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 11451456 + 299151616 = 3384^2 + 17296^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6608553 + ... + 6608599.

Almost surely, 2310603072 is an apocalyptic number.

310603072 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 310603072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341100410).

310603072 is an abundant number, since it is smaller than the sum of its proper divisors (371597748).

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

310603072 is an frugal number, since it uses more digits than its factorization.

310603072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 310603072 is about 17623.9346344680. The cubic root of 310603072 is about 677.2285351878.

Adding to 310603072 its reverse (270306013), we get a palindrome (580909085).

The spelling of 310603072 in words is "three hundred ten million, six hundred three thousand, seventy-two".

Divisors: 1 2 4 8 13 16 26 32 47 52 64 94 104 169 188 208 338 376 416 611 676 752 832 1222 1352 1504 2197 2209 2444 2704 3008 4394 4418 4888 5408 7943 8788 8836 9776 10816 15886 17576 17672 19552 28717 31772 35152 35344 39104 57434 63544 70304 70688 103259 114868 127088 140608 141376 206518 229736 254176 373321 413036 459472 508352 746642 826072 918944 1493284 1652144 1837888 2986568 3304288 4853173 5973136 6608576 9706346 11946272 19412692 23892544 38825384 77650768 155301536 310603072