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5012211261 = 31670737087
BaseRepresentation
bin1001010101100000…
…00100011000111101
3110221022100201021010
410222300010120331
540231111230021
62145205025433
7235131043551
oct45260043075
913838321233
105012211261
112142298562
12b7a6b5279
1361b545aa5
1435795d861
151e5069976
hex12ac0463d

5012211261 has 4 divisors (see below), whose sum is σ = 6682948352. Its totient is φ = 3341474172.

The previous prime is 5012211251. The next prime is 5012211277. The reversal of 5012211261 is 1621122105.

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 not a de Polignac number, because 5012211261 - 213 = 5012203069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5012211251) 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, 835368541 + ... + 835368546.

It is an arithmetic number, because the mean of its divisors is an integer number (1670737088).

Almost surely, 25012211261 is an apocalyptic number.

It is an amenable number.

5012211261 is a deficient number, since it is larger than the sum of its proper divisors (1670737091).

5012211261 is a wasteful number, since it uses less digits than its factorization.

5012211261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670737090.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 5012211261 is about 70796.9721174571. The cubic root of 5012211261 is about 1711.3668791271.

Adding to 5012211261 its reverse (1621122105), we get a palindrome (6633333366).

The spelling of 5012211261 in words is "five billion, twelve million, two hundred eleven thousand, two hundred sixty-one".

Divisors: 1 3 1670737087 5012211261