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70966140 = 22357198893
BaseRepresentation
bin1000011101011…
…01101101111100
311221112110020120
410032231231330
5121131404030
611013014540
71521126240
oct416555574
9157473216
1070966140
1137070a03
121b924450
13119194cb
1495d4420
15636c010
hex43adb7c

70966140 has 96 divisors (see below), whose sum is σ = 239070720. Its totient is φ = 15365376.

The previous prime is 70966123. The next prime is 70966141. The reversal of 70966140 is 4166907.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70966141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3534 + ... + 12426.

It is an arithmetic number, because the mean of its divisors is an integer number (2490320).

Almost surely, 270966140 is an apocalyptic number.

70966140 is a gapful number since it is divisible by the number (70) 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 70966140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119535360).

70966140 is an abundant number, since it is smaller than the sum of its proper divisors (168104580).

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

70966140 is a wasteful number, since it uses less digits than its factorization.

70966140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8931 (or 8929 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 70966140 is about 8424.1403122218. The cubic root of 70966140 is about 414.0159390815.

The spelling of 70966140 in words is "seventy million, nine hundred sixty-six thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 57 60 70 76 84 95 105 114 133 140 190 210 228 266 285 380 399 420 532 570 665 798 1140 1330 1596 1995 2660 3990 7980 8893 17786 26679 35572 44465 53358 62251 88930 106716 124502 133395 168967 177860 186753 249004 266790 311255 337934 373506 506901 533580 622510 675868 747012 844835 933765 1013802 1182769 1245020 1689670 1867530 2027604 2365538 2534505 3379340 3548307 3735060 4731076 5069010 5913845 7096614 10138020 11827690 14193228 17741535 23655380 35483070 70966140