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42988968 = 23341137163
BaseRepresentation
bin1010001111111…
…1010110101000
32222220001210000
42203333112220
542001121333
64133223000
71031254161
oct243772650
988801700
1042988968
11222a2280
1212491a60
138ba2179
1459d0768
153b92713
hex28ff5a8

42988968 has 160 divisors (see below), whose sum is σ = 135732960. Its totient is φ = 12597120.

The previous prime is 42988961. The next prime is 42988969. The reversal of 42988968 is 86988924.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (1990656) is a multiple of the sum of its prime divisors (216).

It is not an unprimeable number, because it can be changed into a prime (42988961) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 263655 + ... + 263817.

It is an arithmetic number, because the mean of its divisors is an integer number (848331).

Almost surely, 242988968 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 42988968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67866480).

42988968 is an abundant number, since it is smaller than the sum of its proper divisors (92743992).

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

42988968 is a wasteful number, since it uses less digits than its factorization.

42988968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 216 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 42988968 is about 6556.5972882281. The cubic root of 42988968 is about 350.3098426331.

It can be divided in two parts, 42988 and 968, that added together give a triangular number (43956 = T296).

The spelling of 42988968 in words is "forty-two million, nine hundred eighty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 37 44 54 66 72 74 81 88 99 108 111 132 148 162 163 198 216 222 264 296 297 324 326 333 396 407 444 489 594 648 652 666 792 814 888 891 978 999 1188 1221 1304 1332 1467 1628 1782 1793 1956 1998 2376 2442 2664 2934 2997 3256 3564 3586 3663 3912 3996 4401 4884 5379 5868 5994 6031 7128 7172 7326 7992 8802 9768 10758 10989 11736 11988 12062 13203 14344 14652 16137 17604 18093 21516 21978 23976 24124 26406 29304 32274 32967 35208 36186 43032 43956 48248 48411 52812 54279 64548 65934 66341 72372 87912 96822 105624 108558 129096 131868 132682 144744 145233 162837 193644 199023 217116 263736 265364 290466 325674 387288 398046 434232 488511 530728 580932 597069 651348 796092 977022 1161864 1194138 1302696 1592184 1791207 1954044 2388276 3582414 3908088 4776552 5373621 7164828 10747242 14329656 21494484 42988968