Search a number
-
+
70981461 = 3311232341
BaseRepresentation
bin1000011101100…
…01011101010101
311221120020021000
410032301131111
5121132401321
611013213513
71521222015
oct416613525
9157506230
1070981461
1137081471
121b931299
1311923485
1495d9c45
156371826
hex43b1755

70981461 has 16 divisors (see below), whose sum is σ = 105296320. Its totient is φ = 47258640.

The previous prime is 70981459. The next prime is 70981483. The reversal of 70981461 is 16418907.

It is not a de Polignac number, because 70981461 - 21 = 70981459 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 (70981441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29151 + ... + 31491.

It is an arithmetic number, because the mean of its divisors is an integer number (6581020).

Almost surely, 270981461 is an apocalyptic number.

It is an amenable number.

70981461 is a deficient number, since it is larger than the sum of its proper divisors (34314859).

70981461 is a wasteful number, since it uses less digits than its factorization.

70981461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473 (or 3467 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 70981461 is about 8425.0496140972. The cubic root of 70981461 is about 414.0457311382.

The spelling of 70981461 in words is "seventy million, nine hundred eighty-one thousand, four hundred sixty-one".

Divisors: 1 3 9 27 1123 2341 3369 7023 10107 21069 30321 63207 2628943 7886829 23660487 70981461