Search a number
-
+
70286384 = 2472372423
BaseRepresentation
bin1000011000001…
…11110000110000
311220020220210102
410030013300300
5120443131014
610550251532
71512265400
oct414076060
9156226712
1070286384
1136747223
121b656ba8
131173bc9c
149498800
1562858de
hex4307c30

70286384 has 60 divisors (see below), whose sum is σ = 162761904. Its totient is φ = 29296512.

The previous prime is 70286327. The next prime is 70286387. The reversal of 70286384 is 48368207.

It is not an unprimeable number, because it can be changed into a prime (70286387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27797 + ... + 30219.

Almost surely, 270286384 is an apocalyptic number.

70286384 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70286384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81380952).

70286384 is an abundant number, since it is smaller than the sum of its proper divisors (92475520).

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

70286384 is a wasteful number, since it uses less digits than its factorization.

70286384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482 (or 2469 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 70286384 is about 8383.6975136273. The cubic root of 70286384 is about 412.6897986685.

The spelling of 70286384 in words is "seventy million, two hundred eighty-six thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 37 49 56 74 98 112 148 196 259 296 392 518 592 784 1036 1813 2072 2423 3626 4144 4846 7252 9692 14504 16961 19384 29008 33922 38768 67844 89651 118727 135688 179302 237454 271376 358604 474908 627557 717208 949816 1255114 1434416 1899632 2510228 4392899 5020456 8785798 10040912 17571596 35143192 70286384