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311374272 = 26311379389
BaseRepresentation
bin10010100011110…
…011000111000000
3210200220110012110
4102203303013000
51114202434042
650521455320
710500431466
oct2243630700
9720813173
10311374272
1114a843110
1288341540
134c681041
142d4d4836
151c50909c
hex128f31c0

311374272 has 112 divisors (see below), whose sum is σ = 903427200. Its totient is φ = 93864960.

The previous prime is 311374267. The next prime is 311374279. The reversal of 311374272 is 272473113.

Its product of digits (7056) is a multiple of the sum of its prime divisors (784).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311374279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800254 + ... + 800642.

Almost surely, 2311374272 is an apocalyptic number.

311374272 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 311374272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451713600).

311374272 is an abundant number, since it is smaller than the sum of its proper divisors (592052928).

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

311374272 is a wasteful number, since it uses less digits than its factorization.

311374272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 784 counting only the distinct ones).

The product of its digits is 7056, while the sum is 30.

The square root of 311374272 is about 17645.8004068957. The cubic root of 311374272 is about 677.7885714865.

The spelling of 311374272 in words is "three hundred eleven million, three hundred seventy-four thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 132 176 192 264 352 379 389 528 704 758 778 1056 1137 1167 1516 1556 2112 2274 2334 3032 3112 4169 4279 4548 4668 6064 6224 8338 8558 9096 9336 12128 12448 12507 12837 16676 17116 18192 18672 24256 24896 25014 25674 33352 34232 36384 37344 50028 51348 66704 68464 72768 74688 100056 102696 133408 136928 147431 200112 205392 266816 273856 294862 400224 410784 442293 589724 800448 821568 884586 1179448 1621741 1769172 2358896 3243482 3538344 4717792 4865223 6486964 7076688 9435584 9730446 12973928 14153376 19460892 25947856 28306752 38921784 51895712 77843568 103791424 155687136 311374272