Search a number
-
+
70887460 = 2257506339
BaseRepresentation
bin1000011100110…
…10100000100100
311221101110022111
410032122200210
5121121344320
611011210404
71520350660
oct416324044
9157343274
1070887460
1137017886
121b8a6a04
13118bc757
1495b38a0
156353a5a
hex439a824

70887460 has 24 divisors (see below), whose sum is σ = 170130240. Its totient is φ = 24304224.

The previous prime is 70887413. The next prime is 70887469. The reversal of 70887460 is 6478807.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (70887469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253030 + ... + 253309.

It is an arithmetic number, because the mean of its divisors is an integer number (7088760).

Almost surely, 270887460 is an apocalyptic number.

70887460 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70887460 is an abundant number, since it is smaller than the sum of its proper divisors (99242780).

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

70887460 is a wasteful number, since it uses less digits than its factorization.

70887460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506355 (or 506353 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 70887460 is about 8419.4691044032. The cubic root of 70887460 is about 413.8628763203.

The spelling of 70887460 in words is "seventy million, eight hundred eighty-seven thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 506339 1012678 2025356 2531695 3544373 5063390 7088746 10126780 14177492 17721865 35443730 70887460