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56078480 = 2451315351
BaseRepresentation
bin1101010111101…
…1000010010000
310220112002012202
43111323002100
5103324002410
65321542332
71250442053
oct325730220
9126462182
1056078480
1129722657
12169449a8
13b806043
14763aa9a
154dcaca5
hex357b090

56078480 has 40 divisors (see below), whose sum is σ = 131402304. Its totient is φ = 22256000.

The previous prime is 56078417. The next prime is 56078483. The reversal of 56078480 is 8487065.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×560784802 = 6289591838220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56078483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7805 + ... + 13155.

Almost surely, 256078480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56078480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65701152).

56078480 is an abundant number, since it is smaller than the sum of its proper divisors (75323824).

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

56078480 is a wasteful number, since it uses less digits than its factorization.

56078480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 56078480 is about 7488.5566032447. The cubic root of 56078480 is about 382.7648755582.

The spelling of 56078480 in words is "fifty-six million, seventy-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 131 262 524 655 1048 1310 2096 2620 5240 5351 10480 10702 21404 26755 42808 53510 85616 107020 214040 428080 700981 1401962 2803924 3504905 5607848 7009810 11215696 14019620 28039240 56078480