Search a number
-
+
70484880 = 2435231132
BaseRepresentation
bin1000011001110…
…00001110010000
311220122000002010
410030320032100
5121021004010
610554422520
71514053164
oct414701620
9156560063
1070484880
1136872374
121b731a40
13117ab43b
14950aca4
1562c4620
hex4338390

70484880 has 120 divisors (see below), whose sum is σ = 230038848. Its totient is φ = 17819648.

The previous prime is 70484879. The next prime is 70484891. The reversal of 70484880 is 8848407.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×704848802 = 9936236617228800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 623704 + ... + 623816.

Almost surely, 270484880 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 70484880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115019424).

70484880 is an abundant number, since it is smaller than the sum of its proper divisors (159553968).

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

70484880 is a wasteful number, since it uses less digits than its factorization.

70484880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 70484880 is about 8395.5273806950. The cubic root of 70484880 is about 413.0779263830.

The spelling of 70484880 in words is "seventy million, four hundred eighty-four thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 40 46 48 60 69 80 92 113 115 120 138 184 226 230 240 276 339 345 368 452 460 552 565 678 690 904 920 1104 1130 1356 1380 1695 1808 1840 2260 2599 2712 2760 3390 4520 5198 5424 5520 6780 7797 9040 10396 12769 12995 13560 15594 20792 25538 25990 27120 31188 38307 38985 41584 51076 51980 62376 63845 76614 77970 102152 103960 124752 127690 153228 155940 191535 204304 207920 255380 293687 306456 311880 383070 510760 587374 612912 623760 766140 881061 1021520 1174748 1468435 1532280 1762122 2349496 2936870 3064560 3524244 4405305 4698992 5873740 7048488 8810610 11747480 14096976 17621220 23494960 35242440 70484880