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53706961 = 7111789461
BaseRepresentation
bin1100110011100…
…0000011010001
310202001121002201
43030320003101
5102222110321
65155043201
71221334030
oct314700321
9122047081
1053706961
1128352920
1215ba0501
13b185789
1471c0717
154aad291
hex33380d1

53706961 has 32 divisors (see below), whose sum is σ = 71850240. Its totient is φ = 38860800.

The previous prime is 53706931. The next prime is 53706971. The reversal of 53706961 is 16960735.

53706961 = T126 + T127 + ... + T686.

It is not a de Polignac number, because 53706961 - 25 = 53706929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53706961.

It is not an unprimeable number, because it can be changed into a prime (53706931) 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 31 ways as a sum of consecutive naturals, for example, 116271 + ... + 116731.

It is an arithmetic number, because the mean of its divisors is an integer number (2245320).

Almost surely, 253706961 is an apocalyptic number.

It is an amenable number.

53706961 is a deficient number, since it is larger than the sum of its proper divisors (18143279).

53706961 is a wasteful number, since it uses less digits than its factorization.

53706961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 53706961 is about 7328.5033260551. The cubic root of 53706961 is about 377.2913596432.

The spelling of 53706961 in words is "fifty-three million, seven hundred six thousand, nine hundred sixty-one".

Divisors: 1 7 11 17 77 89 119 187 461 623 979 1309 1513 3227 5071 6853 7837 10591 16643 35497 41029 54859 86207 116501 287203 451319 603449 697493 3159233 4882451 7672423 53706961