Search a number
-
+
26970957 = 3213297949
BaseRepresentation
bin110011011100…
…0101101001101
31212202021012100
41212320231031
523401032312
62402025313
7445151346
oct146705515
955667170
1026970957
1114251752
129048239
135784360
1438210cd
15257b5dc
hex19b8b4d

26970957 has 24 divisors (see below), whose sum is σ = 43407000. Its totient is φ = 16023168.

The previous prime is 26970949. The next prime is 26970971. The reversal of 26970957 is 75907962.

26970957 = 683 + 693 + ... + 1063.

It can be written as a sum of positive squares in 4 ways, for example, as 1052676 + 25918281 = 1026^2 + 5091^2 .

It is not a de Polignac number, because 26970957 - 23 = 26970949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26970457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 582 + ... + 7367.

It is an arithmetic number, because the mean of its divisors is an integer number (1808625).

Almost surely, 226970957 is an apocalyptic number.

It is an amenable number.

26970957 is a deficient number, since it is larger than the sum of its proper divisors (16436043).

26970957 is a wasteful number, since it uses less digits than its factorization.

26970957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7997 (or 7994 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 26970957 is about 5193.3570067924. The cubic root of 26970957 is about 299.8923947416.

The spelling of 26970957 in words is "twenty-six million, nine hundred seventy thousand, nine hundred fifty-seven".

Divisors: 1 3 9 13 29 39 87 117 261 377 1131 3393 7949 23847 71541 103337 230521 310011 691563 930033 2074689 2996773 8990319 26970957