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1995865088 = 2107383727
BaseRepresentation
bin111011011110110…
…0111110000000000
312011002120110012012
41312331213300000
513041420140323
6530014152052
7100313400440
oct16675476000
95132513165
101995865088
11934682a88
124784b2628
1325a65a279
1414d100120
15ba347678
hex76f67c00

1995865088 has 88 divisors (see below), whose sum is σ = 4577943552. Its totient is φ = 851963904.

The previous prime is 1995865087. The next prime is 1995865103. The reversal of 1995865088 is 8805685991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995865087) 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, 2744981 + ... + 2745707.

Almost surely, 21995865088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1995865088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2288971776).

1995865088 is an abundant number, since it is smaller than the sum of its proper divisors (2582078464).

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

1995865088 is an equidigital number, since it uses as much as digits as its factorization.

1995865088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 59.

The square root of 1995865088 is about 44675.1059092197. The cubic root of 1995865088 is about 1259.0521737204.

The spelling of 1995865088 in words is "one billion, nine hundred ninety-five million, eight hundred sixty-five thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 383 448 512 727 766 896 1024 1454 1532 1792 2681 2908 3064 3584 5089 5362 5816 6128 7168 10178 10724 11632 12256 20356 21448 23264 24512 40712 42896 46528 49024 81424 85792 93056 98048 162848 171584 186112 196096 278441 325696 343168 372224 392192 556882 651392 686336 744448 1113764 1302784 1372672 1949087 2227528 2605568 2745344 3898174 4455056 5211136 7796348 8910112 15592696 17820224 31185392 35640448 62370784 71280896 124741568 142561792 249483136 285123584 498966272 997932544 1995865088