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5212161 = 33193043
BaseRepresentation
bin10011111000100000000001
3100210210202000
4103320200001
52313242121
6303414213
762205543
oct23704001
910723660
105212161
112a3aa79
1218b4369
131106526
14999693
156ce526
hex4f8801

5212161 has 8 divisors (see below), whose sum is σ = 7721760. Its totient is φ = 3474756.

The previous prime is 5212157. The next prime is 5212171. The reversal of 5212161 is 1612125.

It is not a de Polignac number, because 5212161 - 22 = 5212157 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (5212111) 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, 96495 + ... + 96548.

It is an arithmetic number, because the mean of its divisors is an integer number (965220).

Almost surely, 25212161 is an apocalyptic number.

It is an amenable number.

5212161 is a deficient number, since it is larger than the sum of its proper divisors (2509599).

5212161 is a wasteful number, since it uses less digits than its factorization.

5212161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193052 (or 193046 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 5212161 is about 2283.0157686709. The cubic root of 5212161 is about 173.3827714830.

Adding to 5212161 its reverse (1612125), we get a palindrome (6824286).

The spelling of 5212161 in words is "five million, two hundred twelve thousand, one hundred sixty-one".

Divisors: 1 3 9 27 193043 579129 1737387 5212161