Search a number
-
+
53348949 = 3673181
BaseRepresentation
bin1100101110000…
…0101001010101
310201101102000000
43023200221111
5102124131244
65143241513
71215313203
oct313405125
9121342000
1053348949
1128128945
1215a49299
13b08b834
14712a073
154a3c169
hex32e0a55

53348949 has 14 divisors (see below), whose sum is σ = 79987926. Its totient is φ = 35565480.

The previous prime is 53348929. The next prime is 53348957. The reversal of 53348949 is 94984335.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40259025 + 13089924 = 6345^2 + 3618^2 .

It is not a de Polignac number, because 53348949 - 29 = 53348437 is a prime.

It is a super-2 number, since 2×533489492 = 5692220718809202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53348929) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 35862 + ... + 37319.

Almost surely, 253348949 is an apocalyptic number.

It is an amenable number.

53348949 is a deficient number, since it is larger than the sum of its proper divisors (26638977).

53348949 is an frugal number, since it uses more digits than its factorization.

53348949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73199 (or 73184 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 53348949 is about 7304.0364867654. The cubic root of 53348949 is about 376.4511452299.

The spelling of 53348949 in words is "fifty-three million, three hundred forty-eight thousand, nine hundred forty-nine".

Divisors: 1 3 9 27 81 243 729 73181 219543 658629 1975887 5927661 17782983 53348949