Search a number
-
+
53000052 = 22372921757
BaseRepresentation
bin1100101000101…
…1011101110100
310200201200101220
43022023131310
5102032000202
65131550340
71212331050
oct312133564
9120650356
1053000052
1127a0a7a6
12158bb3b0
13ac98aa1
147078c60
1549bdabc
hex328b774

53000052 has 48 divisors (see below), whose sum is σ = 146213760. Its totient is φ = 14620032.

The previous prime is 53000047. The next prime is 53000069. The reversal of 53000052 is 25000035.

It is a junction number, because it is equal to n+sod(n) for n = 52999995 and 53000040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8443 + ... + 13314.

It is an arithmetic number, because the mean of its divisors is an integer number (3046120).

Almost surely, 253000052 is an apocalyptic number.

It is an amenable number.

53000052 is an abundant number, since it is smaller than the sum of its proper divisors (93213708).

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

53000052 is a wasteful number, since it uses less digits than its factorization.

53000052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21800 (or 21798 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 53000052 is about 7280.1134606543. The cubic root of 53000052 is about 375.6286982691.

Adding to 53000052 its reverse (25000035), we get a palindrome (78000087).

The spelling of 53000052 in words is "fifty-three million, fifty-two", and thus it is an aban number and an uban number.

Divisors: 1 2 3 4 6 7 12 14 21 28 29 42 58 84 87 116 174 203 348 406 609 812 1218 2436 21757 43514 65271 87028 130542 152299 261084 304598 456897 609196 630953 913794 1261906 1827588 1892859 2523812 3785718 4416671 7571436 8833342 13250013 17666684 26500026 53000052