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56278950 = 235272131931
BaseRepresentation
bin1101011010101…
…1111110100110
310220220021012120
43112223332212
5103401411300
65330130410
71252235400
oct326537646
9126807176
1056278950
112984a232
1216a20a06
13b876370
14768db70
154e1a3a0
hex35abfa6

56278950 has 288 divisors, whose sum is σ = 189987840. Its totient is φ = 10886400.

The previous prime is 56278949. The next prime is 56278973. The reversal of 56278950 is 5987265.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1815435 + ... + 1815465.

It is an arithmetic number, because the mean of its divisors is an integer number (659680).

Almost surely, 256278950 is an apocalyptic number.

56278950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56278950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94993920).

56278950 is an abundant number, since it is smaller than the sum of its proper divisors (133708890).

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

56278950 is a wasteful number, since it uses less digits than its factorization.

56278950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 56278950 is about 7501.9297517372. The cubic root of 56278950 is about 383.2204372435.

The spelling of 56278950 in words is "fifty-six million, two hundred seventy-eight thousand, nine hundred fifty".