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8201890144 = 257234115641
BaseRepresentation
bin1111010001101111…
…01110100101100000
3210011121022012010001
413220313232211200
5113244140441034
63433510545344
7410151626110
oct75067564540
923147265101
108201890144
113529831508
12170a968254
13a0930c846
1457b41d040
153300c9a14
hex1e8dee960

8201890144 has 48 divisors (see below), whose sum is σ = 18463316256. Its totient is φ = 3513369600.

The previous prime is 8201890139. The next prime is 8201890199. The reversal of 8201890144 is 4410981028.

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, 516564 + ... + 532204.

It is an arithmetic number, because the mean of its divisors is an integer number (384652422).

Almost surely, 28201890144 is an apocalyptic number.

It is an amenable number.

8201890144 is an abundant number, since it is smaller than the sum of its proper divisors (10261426112).

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

8201890144 is a wasteful number, since it uses less digits than its factorization.

8201890144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17999 (or 17991 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 8201890144 is about 90564.2873543429. The cubic root of 8201890144 is about 2016.6846036183.

The spelling of 8201890144 in words is "eight billion, two hundred one million, eight hundred ninety thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 2341 4682 9364 15641 16387 18728 31282 32774 37456 62564 65548 74912 109487 125128 131096 218974 250256 262192 437948 500512 524384 875896 1751792 3503584 36615581 73231162 146462324 256309067 292924648 512618134 585849296 1025236268 1171698592 2050472536 4100945072 8201890144