Search a number
-
+
12961074 = 237308597
BaseRepresentation
bin110001011100…
…010100110010
3220101111020210
4301130110302
511304223244
61141444550
7215111250
oct61342462
926344223
1012961074
117352935
124410756
1328ba599
141a155d0
1512104b9
hexc5c532

12961074 has 16 divisors (see below), whose sum is σ = 29625408. Its totient is φ = 3703152.

The previous prime is 12961033. The next prime is 12961079. The reversal of 12961074 is 47016921.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12961079) 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, 154257 + ... + 154340.

It is an arithmetic number, because the mean of its divisors is an integer number (1851588).

Almost surely, 212961074 is an apocalyptic number.

12961074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12961074 is an abundant number, since it is smaller than the sum of its proper divisors (16664334).

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

12961074 is a wasteful number, since it uses less digits than its factorization.

12961074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308609.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 12961074 is about 3600.1491635764. The cubic root of 12961074 is about 234.8985468215.

Adding to 12961074 its reverse (47016921), we get a palindrome (59977995).

The spelling of 12961074 in words is "twelve million, nine hundred sixty-one thousand, seventy-four".

Divisors: 1 2 3 6 7 14 21 42 308597 617194 925791 1851582 2160179 4320358 6480537 12961074