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30056131664 = 2413487729629
BaseRepresentation
bin11011111111011111…
…000010110001010000
32212120122220200112122
4123333133002301100
5443023332203124
621450235113412
72112550622006
oct337737026120
985518820478
1030056131664
11118239a2639
1259a98a2868
132aacbb93c0
141651a9aa76
15bada1575e
hex6ff7c2c50

30056131664 has 40 divisors (see below), whose sum is σ = 62728250760. Its totient is φ = 13868748288.

The previous prime is 30056131649. The next prime is 30056131709. The reversal of 30056131664 is 46613165003.

It can be written as a sum of positive squares in 4 ways, for example, as 2916864064 + 27139267600 = 54008^2 + 164740^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999602 + ... + 1029230.

It is an arithmetic number, because the mean of its divisors is an integer number (1568206269).

Almost surely, 230056131664 is an apocalyptic number.

It is an amenable number.

30056131664 is an abundant number, since it is smaller than the sum of its proper divisors (32672119096).

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

30056131664 is a wasteful number, since it uses less digits than its factorization.

30056131664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34527 (or 34521 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

Adding to 30056131664 its reverse (46613165003), we get a palindrome (76669296667).

The spelling of 30056131664 in words is "thirty billion, fifty-six million, one hundred thirty-one thousand, six hundred sixty-four".

Divisors: 1 2 4 8 13 16 26 52 104 208 4877 9754 19508 29629 39016 59258 63401 78032 118516 126802 237032 253604 385177 474064 507208 770354 1014416 1540708 3081416 6162832 144500633 289001266 578002532 1156005064 1878508229 2312010128 3757016458 7514032916 15028065832 30056131664