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70361072 = 2431433299
BaseRepresentation
bin1000011000110…
…01111111110000
311220101201020122
410030121333300
5121003023242
610552025412
71513026215
oct414317760
9156351218
1070361072
1136798351
121b692268
1311766c92
1494b7b0c
15629cad2
hex4319ff0

70361072 has 40 divisors (see below), whose sum is σ = 144038400. Its totient is φ = 33243840.

The previous prime is 70361059. The next prime is 70361129. The reversal of 70361072 is 27016307.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19679 + ... + 22977.

It is an arithmetic number, because the mean of its divisors is an integer number (3600960).

Almost surely, 270361072 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 70361072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72019200).

70361072 is an abundant number, since it is smaller than the sum of its proper divisors (73677328).

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

70361072 is a wasteful number, since it uses less digits than its factorization.

70361072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381 (or 3375 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 70361072 is about 8388.1506901104. The cubic root of 70361072 is about 412.8359249527.

Adding to 70361072 its reverse (27016307), we get a palindrome (97377379).

The spelling of 70361072 in words is "seventy million, three hundred sixty-one thousand, seventy-two".

Divisors: 1 2 4 8 16 31 43 62 86 124 172 248 344 496 688 1333 2666 3299 5332 6598 10664 13196 21328 26392 52784 102269 141857 204538 283714 409076 567428 818152 1134856 1636304 2269712 4397567 8795134 17590268 35180536 70361072