Search a number
-
+
70649383 = 740125169
BaseRepresentation
bin1000011011000…
…00011000100111
311220221100201211
410031200120213
5121041240013
611002132251
71515336610
oct415403047
9156840654
1070649383
1136974a22
121b7b1087
131183828c
149550c07
15630823d
hex4360627

70649383 has 8 divisors (see below), whose sum is σ = 80946720. Its totient is φ = 60403200.

The previous prime is 70649377. The next prime is 70649389. The reversal of 70649383 is 38394607.

It is an interprime number because it is at equal distance from previous prime (70649377) and next prime (70649389).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70649383 - 213 = 70641191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70649389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9778 + ... + 15391.

It is an arithmetic number, because the mean of its divisors is an integer number (10118340).

Almost surely, 270649383 is an apocalyptic number.

70649383 is a deficient number, since it is larger than the sum of its proper divisors (10297337).

70649383 is a wasteful number, since it uses less digits than its factorization.

70649383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25577.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 70649383 is about 8405.3187328025. The cubic root of 70649383 is about 413.3990343155.

The spelling of 70649383 in words is "seventy million, six hundred forty-nine thousand, three hundred eighty-three".

Divisors: 1 7 401 2807 25169 176183 10092769 70649383