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52872989 = 1314512803
BaseRepresentation
bin1100100110110…
…0011100011101
310200111020002212
43021230130131
5102013413424
65125130205
71211261441
oct311543435
9120436085
1052872989
1127933294
1215859965
13ac52cc0
147044821
15499610e
hex326c71d

52872989 has 8 divisors (see below), whose sum is σ = 56999712. Its totient is φ = 48754800.

The previous prime is 52872977. The next prime is 52872997. The reversal of 52872989 is 98927825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52872989 - 24 = 52872973 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 (52872089) 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, 17462 + ... + 20264.

It is an arithmetic number, because the mean of its divisors is an integer number (7124964).

Almost surely, 252872989 is an apocalyptic number.

It is an amenable number.

52872989 is a deficient number, since it is larger than the sum of its proper divisors (4126723).

52872989 is a wasteful number, since it uses less digits than its factorization.

52872989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267.

The product of its digits is 725760, while the sum is 50.

The square root of 52872989 is about 7271.3815056013. The cubic root of 52872989 is about 375.3282790556.

The spelling of 52872989 in words is "fifty-two million, eight hundred seventy-two thousand, nine hundred eighty-nine".

Divisors: 1 13 1451 2803 18863 36439 4067153 52872989