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70472688 = 243111310267
BaseRepresentation
bin1000011001101…
…01001111110000
311220121101100120
410030311033300
5121020111223
610554250240
71514002506
oct414651760
9156541316
1070472688
11368641a0
121b726980
13117a5a20
149506676
1562c0be3
hex43353f0

70472688 has 80 divisors (see below), whose sum is σ = 213902976. Its totient is φ = 19710720.

The previous prime is 70472671. The next prime is 70472711. The reversal of 70472688 is 88627407.

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, 1731 + ... + 11997.

Almost surely, 270472688 is an apocalyptic number.

70472688 is a gapful number since it is divisible by the number (78) 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 70472688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106951488).

70472688 is an abundant number, since it is smaller than the sum of its proper divisors (143430288).

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

70472688 is a wasteful number, since it uses less digits than its factorization.

70472688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10302 (or 10296 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 70472688 is about 8394.8012483918. The cubic root of 70472688 is about 413.0541078634.

The spelling of 70472688 in words is "seventy million, four hundred seventy-two thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 13 16 22 24 26 33 39 44 48 52 66 78 88 104 132 143 156 176 208 264 286 312 429 528 572 624 858 1144 1716 2288 3432 6864 10267 20534 30801 41068 61602 82136 112937 123204 133471 164272 225874 246408 266942 338811 400413 451748 492816 533884 677622 800826 903496 1067768 1355244 1468181 1601652 1806992 2135536 2710488 2936362 3203304 4404543 5420976 5872724 6406608 8809086 11745448 17618172 23490896 35236344 70472688