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70063240 = 23513672011
BaseRepresentation
bin1000010110100…
…01010010001000
311212211120200211
410023101102020
5120414010430
610541410504
71510346002
oct413212210
9155746624
1070063240
1136604605
121b569a34
1311691550
14943b372
15623e72a
hex42d1488

70063240 has 64 divisors (see below), whose sum is σ = 172388160. Its totient is φ = 25470720.

The previous prime is 70063199. The next prime is 70063249. The reversal of 70063240 is 4236007.

It is not an unprimeable number, because it can be changed into a prime (70063249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33835 + ... + 35845.

It is an arithmetic number, because the mean of its divisors is an integer number (2693565).

Almost surely, 270063240 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 70063240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86194080).

70063240 is an abundant number, since it is smaller than the sum of its proper divisors (102324920).

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

70063240 is a wasteful number, since it uses less digits than its factorization.

70063240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102 (or 2098 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 70063240 is about 8370.3787250040. The cubic root of 70063240 is about 412.2526021879.

Adding to 70063240 its reverse (4236007), we get a palindrome (74299247).

The spelling of 70063240 in words is "seventy million, sixty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 67 104 130 134 260 268 335 520 536 670 871 1340 1742 2011 2680 3484 4022 4355 6968 8044 8710 10055 16088 17420 20110 26143 34840 40220 52286 80440 104572 130715 134737 209144 261430 269474 522860 538948 673685 1045720 1077896 1347370 1751581 2694740 3503162 5389480 7006324 8757905 14012648 17515810 35031620 70063240