Search a number
-
+
57215541200 = 2452143038853
BaseRepresentation
bin110101010010010011…
…111101111111010000
312110200110010122100112
4311102103331333100
51414134134304300
642141235340452
74063566035006
oct652223757720
9173613118315
1057215541200
11222a0754a44
12b109451728
13551a911a2c
142aaab56a76
15174d087e35
hexd524fdfd0

57215541200 has 30 divisors (see below), whose sum is σ = 137460338694. Its totient is φ = 22886216320.

The previous prime is 57215541169. The next prime is 57215541233. The reversal of 57215541200 is 214551275.

It can be written as a sum of positive squares in 3 ways, for example, as 2455797136 + 54759744064 = 49556^2 + 234008^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71519027 + ... + 71519826.

Almost surely, 257215541200 is an apocalyptic number.

57215541200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57215541200 is an abundant number, since it is smaller than the sum of its proper divisors (80244797494).

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

57215541200 is a wasteful number, since it uses less digits than its factorization.

57215541200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143038871 (or 143038860 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 57215541200 in words is "fifty-seven billion, two hundred fifteen million, five hundred forty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 143038853 286077706 572155412 715194265 1144310824 1430388530 2288621648 2860777060 3575971325 5721554120 7151942650 11443108240 14303885300 28607770600 57215541200