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50402 = 2112979
BaseRepresentation
bin1100010011100010
32120010202
430103202
53103102
61025202
7266642
oct142342
976122
1050402
1134960
1225202
1319c31
1414522
15ee02
hexc4e2

50402 has 16 divisors (see below), whose sum is σ = 86400. Its totient is φ = 21840.

The previous prime is 50387. The next prime is 50411. The reversal of 50402 is 20405.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is an Ulam number.

It is an unprimeable number.

50402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599 + ... + 677.

It is an arithmetic number, because the mean of its divisors is an integer number (5400).

250402 is an apocalyptic number.

50402 is a deficient number, since it is larger than the sum of its proper divisors (35998).

50402 is a wasteful number, since it uses less digits than its factorization.

50402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121.

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 50402 is about 224.5038975163. The cubic root of 50402 is about 36.9387836043.

Adding to 50402 its reverse (20405), we get a palindrome (70807).

It can be divided in two parts, 50 and 402, that multiplied together give a triangular number (20100 = T200).

The spelling of 50402 in words is "fifty thousand, four hundred two".

Divisors: 1 2 11 22 29 58 79 158 319 638 869 1738 2291 4582 25201 50402