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50144542531 = 1917338939217
BaseRepresentation
bin101110101100110110…
…001111111101000011
311210102122210200200221
4232230312033331003
51310144000330111
635011443323511
73423425402356
oct565466177503
9153378720627
1050144542531
111a2a2317a96
129875380597
1349619aa855
1425d99d829d
1514873e7371
hexbacd8ff43

50144542531 has 16 divisors (see below), whose sum is σ = 53226669600. Its totient is φ = 47108141568.

The previous prime is 50144542457. The next prime is 50144542561. The reversal of 50144542531 is 13524544105.

It is not a de Polignac number, because 50144542531 - 215 = 50144509763 is a prime.

It is a super-2 number, since 2×501445425312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50144542561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1259035 + ... + 1298251.

It is an arithmetic number, because the mean of its divisors is an integer number (3326666850).

Almost surely, 250144542531 is an apocalyptic number.

50144542531 is a deficient number, since it is larger than the sum of its proper divisors (3082127069).

50144542531 is a wasteful number, since it uses less digits than its factorization.

50144542531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39798.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 50144542531 in words is "fifty billion, one hundred forty-four million, five hundred forty-two thousand, five hundred thirty-one".

Divisors: 1 19 173 389 3287 7391 39217 67297 745123 1278643 6784541 15255413 128906279 289852847 2639186449 50144542531