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53037688 = 2311317293
BaseRepresentation
bin1100101001010…
…0101001111000
310200210121000211
43022110221320
5102034201223
65132440504
71212545554
oct312245170
9120717024
1053037688
1127a36000
1215919134
13acacc62
147088864
1549c9d0d
hex3294a78

53037688 has 64 divisors (see below), whose sum is σ = 116212320. Its totient is φ = 22612480.

The previous prime is 53037661. The next prime is 53037689. The reversal of 53037688 is 88673035.

It is a self number, because there is not a number n which added to its sum of digits gives 53037688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53037689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180870 + ... + 181162.

Almost surely, 253037688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53037688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58106160).

53037688 is an abundant number, since it is smaller than the sum of its proper divisors (63174632).

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

53037688 is a wasteful number, since it uses less digits than its factorization.

53037688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 53037688 is about 7282.6978517580. The cubic root of 53037688 is about 375.7175901108.

The spelling of 53037688 in words is "fifty-three million, thirty-seven thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 11 17 22 34 44 68 88 121 136 187 242 293 374 484 586 748 968 1172 1331 1496 2057 2344 2662 3223 4114 4981 5324 6446 8228 9962 10648 12892 16456 19924 22627 25784 35453 39848 45254 54791 70906 90508 109582 141812 181016 219164 283624 389983 438328 602701 779966 1205402 1559932 2410804 3119864 4821608 6629711 13259422 26518844 53037688