Search a number
-
+
70034432 = 210135261
BaseRepresentation
bin1000010110010…
…10010000000000
311212210010011212
410023022100000
5120412100212
610541025252
71510166006
oct413122000
9155703155
1070034432
11365949a6
121b555228
13116813c0
149430a76
156235e22
hex42ca400

70034432 has 44 divisors (see below), whose sum is σ = 150798396. Its totient is φ = 32317440.

The previous prime is 70034429. The next prime is 70034443. The reversal of 70034432 is 23443007.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30294016 + 39740416 = 5504^2 + 6304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70034398 and 70034407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10682 + ... + 15942.

Almost surely, 270034432 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 70034432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75399198).

70034432 is an abundant number, since it is smaller than the sum of its proper divisors (80763964).

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

70034432 is a wasteful number, since it uses less digits than its factorization.

70034432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5294 (or 5276 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 70034432 is about 8368.6577179378. The cubic root of 70034432 is about 412.1960922832.

Adding to 70034432 its reverse (23443007), we get a palindrome (93477439).

The spelling of 70034432 in words is "seventy million, thirty-four thousand, four hundred thirty-two".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 256 416 512 832 1024 1664 3328 5261 6656 10522 13312 21044 42088 68393 84176 136786 168352 273572 336704 547144 673408 1094288 1346816 2188576 2693632 4377152 5387264 8754304 17508608 35017216 70034432