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52215002231 = 716345762491
BaseRepresentation
bin110000101000010000…
…011011010001110111
311222202221201221110112
4300220100123101313
51323414020032411
635553124413235
73525636124130
oct605020332167
9158687657415
1052215002231
112016500a007
12a15284721b
134c01924a32
142754994c87
151559076b8b
hexc2841b477

52215002231 has 8 divisors (see below), whose sum is σ = 60040389504. Its totient is φ = 44481140280.

The previous prime is 52215002221. The next prime is 52215002239. The reversal of 52215002231 is 13220051225.

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 52215002231 - 26 = 52215002167 is a prime.

It is a super-2 number, since 2×522150022312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52215002197 and 52215002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52215002239) 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, 22880105 + ... + 22882386.

It is an arithmetic number, because the mean of its divisors is an integer number (7505048688).

Almost surely, 252215002231 is an apocalyptic number.

52215002231 is a deficient number, since it is larger than the sum of its proper divisors (7825387273).

52215002231 is a wasteful number, since it uses less digits than its factorization.

52215002231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45762661.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 52215002231 its reverse (13220051225), we get a palindrome (65435053456).

The spelling of 52215002231 in words is "fifty-two billion, two hundred fifteen million, two thousand, two hundred thirty-one".

Divisors: 1 7 163 1141 45762491 320337437 7459286033 52215002231