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56201215273 = 728089141793
BaseRepresentation
bin110100010101110110…
…100111110100101001
312101001202111112202121
4310111312213310221
51410100002342043
641452443031241
74026501306400
oct642566476451
9171052445677
1056201215273
1121920136955
12aa8580b521
1353b8729c88
142a1215a637
1516ddec6ded
hexd15da7d29

56201215273 has 12 divisors (see below), whose sum is σ = 65385467220. Its totient is φ = 48166175232.

The previous prime is 56201215267. The next prime is 56201215393. The reversal of 56201215273 is 37251210265.

It can be written as a sum of positive squares in 2 ways, for example, as 7655025049 + 48546190224 = 87493^2 + 220332^2 .

It is not a de Polignac number, because 56201215273 - 213 = 56201207081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56201218273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325465 + ... + 467257.

It is an arithmetic number, because the mean of its divisors is an integer number (5448788935).

Almost surely, 256201215273 is an apocalyptic number.

It is an amenable number.

56201215273 is a deficient number, since it is larger than the sum of its proper divisors (9184251947).

56201215273 is a wasteful number, since it uses less digits than its factorization.

56201215273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149896 (or 149889 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 56201215273 in words is "fifty-six billion, two hundred one million, two hundred fifteen thousand, two hundred seventy-three".

Divisors: 1 7 49 8089 56623 141793 396361 992551 6947857 1146963577 8028745039 56201215273