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70011712 = 2617229281
BaseRepresentation
bin1000010110001…
…00101101000000
311212201222000101
410023010231000
5120410333322
610540332144
71510042531
oct413045500
9155658011
1070011712
1136579921
121b544054
1311673c64
149426688
15622e327
hex42c4b40

70011712 has 56 divisors (see below), whose sum is σ = 148269960. Its totient is φ = 32686080.

The previous prime is 70011709. The next prime is 70011737. The reversal of 70011712 is 21711007.

It can be written as a sum of positive squares in 4 ways, for example, as 42302016 + 27709696 = 6504^2 + 5264^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70011712.

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, 249012 + ... + 249292.

Almost surely, 270011712 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 70011712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74134980).

70011712 is an abundant number, since it is smaller than the sum of its proper divisors (78258248).

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

70011712 is a wasteful number, since it uses less digits than its factorization.

70011712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 70011712 is about 8367.3001619399. The cubic root of 70011712 is about 412.1515136959.

Adding to 70011712 its reverse (21711007), we get a palindrome (91722719).

The spelling of 70011712 in words is "seventy million, eleven thousand, seven hundred twelve".

Divisors: 1 2 4 8 16 17 32 34 64 68 136 229 272 281 458 544 562 916 1088 1124 1832 2248 3664 3893 4496 4777 7328 7786 8992 9554 14656 15572 17984 19108 31144 38216 62288 64349 76432 124576 128698 152864 249152 257396 305728 514792 1029584 1093933 2059168 2187866 4118336 4375732 8751464 17502928 35005856 70011712