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70900224 = 293311489
BaseRepresentation
bin1000011100111…
…01101000000000
311221102002211020
410032131220000
5121122301344
611011345440
71520433123
oct416355000
9157362736
1070900224
113702642a
121b8b2280
13118c54c5
1495b83ba
156357719
hex439da00

70900224 has 80 divisors (see below), whose sum is σ = 195106560. Its totient is φ = 22855680.

The previous prime is 70900223. The next prime is 70900231. The reversal of 70900224 is 42200907.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 70900194 and 70900203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70900223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46872 + ... + 48360.

It is an arithmetic number, because the mean of its divisors is an integer number (2438832).

Almost surely, 270900224 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 70900224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97553280).

70900224 is an abundant number, since it is smaller than the sum of its proper divisors (124206336).

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

70900224 is a wasteful number, since it uses less digits than its factorization.

70900224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541 (or 1525 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 70900224 is about 8420.2270753229. The cubic root of 70900224 is about 413.8877148871.

The spelling of 70900224 in words is "seventy million, nine hundred thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 48 62 64 93 96 124 128 186 192 248 256 372 384 496 512 744 768 992 1488 1489 1536 1984 2976 2978 3968 4467 5952 5956 7936 8934 11904 11912 15872 17868 23808 23824 35736 46159 47616 47648 71472 92318 95296 138477 142944 184636 190592 276954 285888 369272 381184 553908 571776 738544 762368 1107816 1143552 1477088 2215632 2287104 2954176 4431264 5908352 8862528 11816704 17725056 23633408 35450112 70900224