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52721005801 = 198849313571
BaseRepresentation
bin110001000110011010…
…101011010011101001
312001002012212120212111
4301012122223103221
51330433034141201
640115242042321
73544322104162
oct610632532351
9161065776774
1052721005801
11203a46a6a82
12a2741a93a1
134c826cc629
1427a1c70769
1515886c8b51
hexc466ab4e9

52721005801 has 8 divisors (see below), whose sum is σ = 55502244000. Its totient is φ = 49940412480.

The previous prime is 52721005787. The next prime is 52721005837. The reversal of 52721005801 is 10850012725.

52721005801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52721005801 - 215 = 52720973033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52721005871) 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, 11346 + ... + 324916.

It is an arithmetic number, because the mean of its divisors is an integer number (6937780500).

Almost surely, 252721005801 is an apocalyptic number.

It is an amenable number.

52721005801 is a deficient number, since it is larger than the sum of its proper divisors (2781238199).

52721005801 is a wasteful number, since it uses less digits than its factorization.

52721005801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322439.

The product of its (nonzero) digits is 5600, while the sum is 31.

The spelling of 52721005801 in words is "fifty-two billion, seven hundred twenty-one million, five thousand, eight hundred one".

Divisors: 1 19 8849 168131 313571 5957849 2774789779 52721005801