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331032468 = 2231322347151
BaseRepresentation
bin10011101110110…
…010011110010100
3212001220012011210
4103232302132110
51134221014333
652503101420
711126505144
oct2356623624
9761805153
10331032468
1115a94a658
1292a41870
1353774a00
1431d70924
151e0dda63
hex13bb2794

331032468 has 144 divisors (see below), whose sum is σ = 897232896. Its totient is φ = 94723200.

The previous prime is 331032467. The next prime is 331032479. The reversal of 331032468 is 864230133.

331032468 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331032463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2192193 + ... + 2192343.

It is an arithmetic number, because the mean of its divisors is an integer number (6230784).

Almost surely, 2331032468 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 331032468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448616448).

331032468 is an abundant number, since it is smaller than the sum of its proper divisors (566200428).

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

331032468 is a wasteful number, since it uses less digits than its factorization.

331032468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 331032468 is about 18194.2976781188. The cubic root of 331032468 is about 691.7622586482.

It can be divided in two parts, 3310 and 32468, that added together give a triangular number (35778 = T267).

The spelling of 331032468 in words is "three hundred thirty-one million, thirty-two thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 23 26 39 46 47 52 69 78 92 94 138 141 151 156 169 188 276 282 299 302 338 453 507 564 598 604 611 676 897 906 1014 1081 1196 1222 1794 1812 1833 1963 2028 2162 2444 3243 3473 3588 3666 3887 3926 4324 5889 6486 6946 7097 7332 7774 7852 7943 10419 11661 11778 12972 13892 14053 14194 15548 15886 20838 21291 23322 23556 23829 25519 28106 28388 31772 41676 42159 42582 45149 46644 47658 51038 56212 76557 84318 85164 90298 92261 95316 102076 135447 153114 163231 168636 180596 182689 184522 270894 276783 306228 326462 365378 369044 489693 541788 548067 553566 586937 652924 730756 979386 1096134 1107132 1173874 1199393 1760811 1958772 2122003 2192268 2347748 2398786 3521622 3598179 4244006 4797572 6366009 7043244 7196358 8488012 12732018 14392716 25464036 27586039 55172078 82758117 110344156 165516234 331032468