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49231012851 = 3241133417379
BaseRepresentation
bin101101110110011001…
…011010001111110011
311201001222211120120100
4231312121122033303
51301311114402401
634341051243443
73361663463466
oct556631321763
9151058746510
1049231012851
1119973694689
12965b449583
134847657b47
1425505592dd
1514320e6b86
hexb7665a3f3

49231012851 has 12 divisors (see below), whose sum is σ = 72845889480. Its totient is φ = 32020170720.

The previous prime is 49231012829. The next prime is 49231012867. The reversal of 49231012851 is 15821013294.

It is not a de Polignac number, because 49231012851 - 25 = 49231012819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49231012891) 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, 66708321 + ... + 66709058.

It is an arithmetic number, because the mean of its divisors is an integer number (6070490790).

Almost surely, 249231012851 is an apocalyptic number.

49231012851 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

49231012851 is a deficient number, since it is larger than the sum of its proper divisors (23614876629).

49231012851 is a wasteful number, since it uses less digits than its factorization.

49231012851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133417426 (or 133417423 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 49231012851 in words is "forty-nine billion, two hundred thirty-one million, twelve thousand, eight hundred fifty-one".

Divisors: 1 3 9 41 123 369 133417379 400252137 1200756411 5470112539 16410337617 49231012851