Search a number
-
+
311376480 = 25352922369
BaseRepresentation
bin10010100011110…
…011101001100000
3210200220120020020
4102203303221200
51114203021410
650521513440
710500441102
oct2243635140
9720816206
10311376480
1114a844838
1288342880
134c68204c
142d4d5572
151c509a70
hex128f3a60

311376480 has 96 divisors (see below), whose sum is σ = 1014703200. Its totient is φ = 80166912.

The previous prime is 311376479. The next prime is 311376491. The reversal of 311376480 is 84673113.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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, 2736 + ... + 25104.

It is an arithmetic number, because the mean of its divisors is an integer number (10569825).

Almost surely, 2311376480 is an apocalyptic number.

311376480 is a gapful number since it is divisible by the number (30) 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 311376480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507351600).

311376480 is an abundant number, since it is smaller than the sum of its proper divisors (703326720).

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

311376480 is a wasteful number, since it uses less digits than its factorization.

311376480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22416 (or 22408 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 311376480 is about 17645.8629712463. The cubic root of 311376480 is about 677.7901735816.

The spelling of 311376480 in words is "three hundred eleven million, three hundred seventy-six thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 29 30 32 40 48 58 60 80 87 96 116 120 145 160 174 232 240 290 348 435 464 480 580 696 870 928 1160 1392 1740 2320 2784 3480 4640 6960 13920 22369 44738 67107 89476 111845 134214 178952 223690 268428 335535 357904 447380 536856 648701 671070 715808 894760 1073712 1297402 1342140 1789520 1946103 2147424 2594804 2684280 3243505 3579040 3892206 5189608 5368560 6487010 7784412 9730515 10379216 10737120 12974020 15568824 19461030 20758432 25948040 31137648 38922060 51896080 62275296 77844120 103792160 155688240 311376480