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50406621 = 3433791031
BaseRepresentation
bin1100000001001…
…0010011011101
310111211220212220
43000102103131
5100401002441
65000215553
71151310036
oct300222335
9114756786
1050406621
11264a9271
1214a6a5b9
13a59b505
1469a1a8d
15465a466
hex30124dd

50406621 has 16 divisors (see below), whose sum is σ = 69020160. Its totient is φ = 32704560.

The previous prime is 50406599. The next prime is 50406641. The reversal of 50406621 is 12660405.

It is not a de Polignac number, because 50406621 - 27 = 50406493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50406591 and 50406600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50406641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48376 + ... + 49406.

It is an arithmetic number, because the mean of its divisors is an integer number (4313760).

Almost surely, 250406621 is an apocalyptic number.

It is an amenable number.

50406621 is a deficient number, since it is larger than the sum of its proper divisors (18613539).

50406621 is a wasteful number, since it uses less digits than its factorization.

50406621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 50406621 is about 7099.7620382658. The cubic root of 50406621 is about 369.3991245434.

The spelling of 50406621 in words is "fifty million, four hundred six thousand, six hundred twenty-one".

Divisors: 1 3 43 129 379 1031 1137 3093 16297 44333 48891 132999 390749 1172247 16802207 50406621