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52870068 = 22321786389
BaseRepresentation
bin1100100110101…
…1101110110100
310200111002002200
43021223232310
5102013320233
65125104500
71211250066
oct311535664
9120432080
1052870068
1127931079
1215858130
13ac51884
147043736
154995313
hex326bbb4

52870068 has 36 divisors (see below), whose sum is σ = 141506820. Its totient is φ = 16586496.

The previous prime is 52870061. The next prime is 52870073. The reversal of 52870068 is 86007825.

52870068 is a `hidden beast` number, since 528 + 70 + 0 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19554084 + 33315984 = 4422^2 + 5772^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52870061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42583 + ... + 43806.

It is an arithmetic number, because the mean of its divisors is an integer number (3930745).

Almost surely, 252870068 is an apocalyptic number.

It is an amenable number.

52870068 is an abundant number, since it is smaller than the sum of its proper divisors (88636752).

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

52870068 is a wasteful number, since it uses less digits than its factorization.

52870068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86416 (or 86411 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 52870068 is about 7271.1806469101. The cubic root of 52870068 is about 375.3213671830.

The spelling of 52870068 in words is "fifty-two million, eight hundred seventy thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 86389 172778 259167 345556 518334 777501 1036668 1468613 1555002 2937226 3110004 4405839 5874452 8811678 13217517 17623356 26435034 52870068