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50135091 = 31719311669
BaseRepresentation
bin1011111101000…
…0000000110011
310111100010102020
42333100000303
5100313310331
64550322523
71146066306
oct277200063
9114303366
1050135091
1126333266
1214959443
13a504a46
146930b3d
154604c96
hex2fd0033

50135091 has 32 divisors (see below), whose sum is σ = 76953600. Its totient is φ = 28823040.

The previous prime is 50135089. The next prime is 50135093. The reversal of 50135091 is 19053105.

50135091 is a nontrivial binomial coefficient, being equal to C(10014, 2).

It is an interprime number because it is at equal distance from previous prime (50135089) and next prime (50135093).

It is not a de Polignac number, because 50135091 - 21 = 50135089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50135093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29205 + ... + 30873.

It is an arithmetic number, because the mean of its divisors is an integer number (2404800).

Almost surely, 250135091 is an apocalyptic number.

50135091 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

50135091 is the 10013-rd triangular number and also the 5007-th hexagonal number.

50135091 is a deficient number, since it is larger than the sum of its proper divisors (26818509).

50135091 is a wasteful number, since it uses less digits than its factorization.

50135091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 50135091 is about 7080.6137445846. The cubic root of 50135091 is about 368.7346378356.

Adding to 50135091 its reverse (19053105), we get a palindrome (69188196).

The spelling of 50135091 in words is "fifty million, one hundred thirty-five thousand, ninety-one".

Divisors: 1 3 17 19 31 51 57 93 323 527 589 969 1581 1669 1767 5007 10013 28373 30039 31711 51739 85119 95133 155217 539087 879563 983041 1617261 2638689 2949123 16711697 50135091