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53879240 = 2353143451
BaseRepresentation
bin1100110110001…
…0000111001000
310202101100102102
43031202013020
5102243113430
65202452532
71222652222
oct315420710
9122340372
1053879240
11284602a8
1216064148
13b21600c
147227412
154ae4345
hex33621c8

53879240 has 32 divisors (see below), whose sum is σ = 125141760. Its totient is φ = 20856000.

The previous prime is 53879233. The next prime is 53879257. The reversal of 53879240 is 4297835.

It is a junction number, because it is equal to n+sod(n) for n = 53879194 and 53879203.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20486 + ... + 22965.

It is an arithmetic number, because the mean of its divisors is an integer number (3910680).

Almost surely, 253879240 is an apocalyptic number.

It is an amenable number.

53879240 is an abundant number, since it is smaller than the sum of its proper divisors (71262520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53879240 is a wasteful number, since it uses less digits than its factorization.

53879240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43493 (or 43489 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 53879240 is about 7340.2479522152. The cubic root of 53879240 is about 377.6943489997.

The spelling of 53879240 in words is "fifty-three million, eight hundred seventy-nine thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 43451 86902 173804 217255 347608 434510 869020 1346981 1738040 2693962 5387924 6734905 10775848 13469810 26939620 53879240