Search a number
-
+
70240856 = 2371254301
BaseRepresentation
bin1000010111111…
…00101001011000
311220011121100012
410023330221120
5120440201411
610545301052
71512015560
oct413745130
9156147305
1070240856
1136715aa4
121b634788
131172434a
149485da0
15627718b
hex42fca58

70240856 has 16 divisors (see below), whose sum is σ = 150516240. Its totient is φ = 30103200.

The previous prime is 70240811. The next prime is 70240861. The reversal of 70240856 is 65804207.

It is a super-3 number, since 3×702408563 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627095 + ... + 627206.

It is an arithmetic number, because the mean of its divisors is an integer number (9407265).

Almost surely, 270240856 is an apocalyptic number.

It is an amenable number.

70240856 is an abundant number, since it is smaller than the sum of its proper divisors (80275384).

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

70240856 is a wasteful number, since it uses less digits than its factorization.

70240856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254314 (or 1254310 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 70240856 is about 8380.9818040609. The cubic root of 70240856 is about 412.6006728265.

The spelling of 70240856 in words is "seventy million, two hundred forty thousand, eight hundred fifty-six".

Divisors: 1 2 4 7 8 14 28 56 1254301 2508602 5017204 8780107 10034408 17560214 35120428 70240856