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52129477 = 232266499
BaseRepresentation
bin1100011011011…
…0111011000101
310122002110012101
43012312323011
5101321120402
65101152101
71202043661
oct306667305
9118073171
1052129477
1127475714
121555b631
13aa5275a
146ccd8a1
15489ab87
hex31b6ec5

52129477 has 4 divisors (see below), whose sum is σ = 54396000. Its totient is φ = 49862956.

The previous prime is 52129471. The next prime is 52129481. The reversal of 52129477 is 77492125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52129477 - 219 = 51605189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52129471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1133227 + ... + 1133272.

It is an arithmetic number, because the mean of its divisors is an integer number (13599000).

Almost surely, 252129477 is an apocalyptic number.

It is an amenable number.

52129477 is a deficient number, since it is larger than the sum of its proper divisors (2266523).

52129477 is a wasteful number, since it uses less digits than its factorization.

52129477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266522.

The product of its digits is 35280, while the sum is 37.

The square root of 52129477 is about 7220.0745841023. The cubic root of 52129477 is about 373.5606501641.

The spelling of 52129477 in words is "fifty-two million, one hundred twenty-nine thousand, four hundred seventy-seven".

Divisors: 1 23 2266499 52129477