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5211642 = 234718481
BaseRepresentation
bin10011111000010111111010
3100210210000210
4103320113322
52313233032
6303411550
762204202
oct23702772
910723023
105211642
112a3a647
1218b3bb6
131106217
14999402
156ce2cc
hex4f85fa

5211642 has 16 divisors (see below), whose sum is σ = 10645632. Its totient is φ = 1700160.

The previous prime is 5211641. The next prime is 5211659. The reversal of 5211642 is 2461125.

It is a super-2 number, since 2×52116422 = 54322424672328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5211641) 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, 8959 + ... + 9522.

It is an arithmetic number, because the mean of its divisors is an integer number (665352).

Almost surely, 25211642 is an apocalyptic number.

5211642 is an abundant number, since it is smaller than the sum of its proper divisors (5433990).

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

5211642 is a wasteful number, since it uses less digits than its factorization.

5211642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18533.

The product of its digits is 480, while the sum is 21.

The square root of 5211642 is about 2282.9021003976. The cubic root of 5211642 is about 173.3770164392.

Adding to 5211642 its reverse (2461125), we get a palindrome (7672767).

The spelling of 5211642 in words is "five million, two hundred eleven thousand, six hundred forty-two".

Divisors: 1 2 3 6 47 94 141 282 18481 36962 55443 110886 868607 1737214 2605821 5211642