Search a number
-
+
61082853 = 31321719373
BaseRepresentation
bin1110100100000…
…0110011100101
311020221022220220
43221000303211
5111114122403
610021114553
71341124056
oct351006345
9136838826
1061082853
11315304a7
1218558a59
13c868b00
14818072d
155568953
hex3a40ce5

61082853 has 48 divisors (see below), whose sum is σ = 98556480. Its totient is φ = 33426432.

The previous prime is 61082849. The next prime is 61082863. The reversal of 61082853 is 35828016.

It is a happy number.

It is not a de Polignac number, because 61082853 - 22 = 61082849 is a prime.

It is a super-2 number, since 2×610828532 = 7462229861239218, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61082843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163575 + ... + 163947.

It is an arithmetic number, because the mean of its divisors is an integer number (2053260).

Almost surely, 261082853 is an apocalyptic number.

It is an amenable number.

61082853 is a deficient number, since it is larger than the sum of its proper divisors (37473627).

61082853 is a wasteful number, since it uses less digits than its factorization.

61082853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 61082853 is about 7815.5519958606. The cubic root of 61082853 is about 393.8278620524.

The spelling of 61082853 in words is "sixty-one million, eighty-two thousand, eight hundred fifty-three".

Divisors: 1 3 13 17 19 39 51 57 169 221 247 323 373 507 663 741 969 1119 2873 3211 4199 4849 6341 7087 8619 9633 12597 14547 19023 21261 54587 63037 82433 92131 120479 163761 189111 247299 276393 361437 1071629 1197703 1566227 3214887 3593109 4698681 20360951 61082853