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49719453137 = 192314442807
BaseRepresentation
bin101110010011100000…
…101010010111010001
311202100000220220200022
4232103200222113101
51303311140000022
634501340233225
73410044243604
oct562340522721
9152300826608
1049719453137
111a0a4376042
129776b3b815
1348c48c3473
14259938233b
15145ee29c42
hexb9382a5d1

49719453137 has 12 divisors (see below), whose sum is σ = 54166715136. Its totient is φ = 45583189560.

The previous prime is 49719453101. The next prime is 49719453151. The reversal of 49719453137 is 73135491794.

It is not a de Polignac number, because 49719453137 - 230 = 48645711313 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (49719453337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2210213 + ... + 2232594.

It is an arithmetic number, because the mean of its divisors is an integer number (4513892928).

Almost surely, 249719453137 is an apocalyptic number.

It is an amenable number.

49719453137 is a deficient number, since it is larger than the sum of its proper divisors (4447261999).

49719453137 is a wasteful number, since it uses less digits than its factorization.

49719453137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442876 (or 4442857 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 53.

The spelling of 49719453137 in words is "forty-nine billion, seven hundred nineteen million, four hundred fifty-three thousand, one hundred thirty-seven".

Divisors: 1 19 31 361 589 11191 4442807 84413333 137727017 1603853327 2616813323 49719453137