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52177216 = 2671317231
BaseRepresentation
bin1100011100001…
…0100101000000
310122011212200111
43013002211000
5101324132331
65102201104
71202333110
oct307024500
9118155614
1052177216
11274a8573
1215583194
13aa6b3c0
146d03040
1548a9db1
hex31c2940

52177216 has 168 divisors, whose sum is σ = 139736576. Its totient is φ = 18800640.

The previous prime is 52177207. The next prime is 52177219. The reversal of 52177216 is 61277125.

It is a Harshad number since it is a multiple of its sum of digits (31).

Its product of digits (5880) is a multiple of the sum of its prime divisors (70).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52177219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1683121 + ... + 1683151.

Almost surely, 252177216 is an apocalyptic number.

52177216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52177216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69868288).

52177216 is an abundant number, since it is smaller than the sum of its proper divisors (87559360).

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

52177216 is a wasteful number, since it uses less digits than its factorization.

52177216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 70 counting only the distinct ones).

The product of its digits is 5880, while the sum is 31.

The square root of 52177216 is about 7223.3798183399. The cubic root of 52177216 is about 373.6746481800.

Subtracting 52177216 from its reverse (61277125), we obtain a palindrome (9099909).

The spelling of 52177216 in words is "fifty-two million, one hundred seventy-seven thousand, two hundred sixteen".