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52988500 = 2253105977
BaseRepresentation
bin1100101000100…
…0101001010100
310200201002120001
43022020221110
5102031113000
65131421044
71212252265
oct312105124
9120632501
1052988500
1127a02054
12158b4784
13ac93756
14707496c
1549ba46a
hex3288a54

52988500 has 24 divisors (see below), whose sum is σ = 115727976. Its totient is φ = 21195200.

The previous prime is 52988489. The next prime is 52988501. The reversal of 52988500 is 588925.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2322576 + 50665924 = 1524^2 + 7118^2 .

It is a super-2 number, since 2×529885002 = 5615562264500000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52988500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52988501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52489 + ... + 53488.

It is an arithmetic number, because the mean of its divisors is an integer number (4821999).

Almost surely, 252988500 is an apocalyptic number.

52988500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52988500 is an abundant number, since it is smaller than the sum of its proper divisors (62739476).

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

52988500 is a wasteful number, since it uses less digits than its factorization.

52988500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105996 (or 105984 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 52988500 is about 7279.3200231890. The cubic root of 52988500 is about 375.6014053524.

The spelling of 52988500 in words is "fifty-two million, nine hundred eighty-eight thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 105977 211954 423908 529885 1059770 2119540 2649425 5298850 10597700 13247125 26494250 52988500