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2538085872 = 243719339139
BaseRepresentation
bin1001011101001000…
…0001110111110000
320112212212010021110
42113102001313300
520144222221442
61055503553320
7116616242160
oct22722016760
96485763243
102538085872
111092757533
125a9bbb840
13315aa597a
141a11265a0
15ecc5069c
hex97481df0

2538085872 has 80 divisors (see below), whose sum is σ = 7532414720. Its totient is φ = 721391616.

The previous prime is 2538085861. The next prime is 2538085883. The reversal of 2538085872 is 2785808352.

It is an interprime number because it is at equal distance from previous prime (2538085861) and next prime (2538085883).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45279 + ... + 84417.

It is an arithmetic number, because the mean of its divisors is an integer number (94155184).

Almost surely, 22538085872 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 2538085872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3766207360).

2538085872 is an abundant number, since it is smaller than the sum of its proper divisors (4994328848).

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

2538085872 is a wasteful number, since it uses less digits than its factorization.

2538085872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39350 (or 39344 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The square root of 2538085872 is about 50379.4191312286. The cubic root of 2538085872 is about 1364.0661669585.

The spelling of 2538085872 in words is "two billion, five hundred thirty-eight million, eighty-five thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 193 336 386 579 772 1158 1351 1544 2316 2702 3088 4053 4632 5404 8106 9264 10808 16212 21616 32424 39139 64848 78278 117417 156556 234834 273973 313112 469668 547946 626224 821919 939336 1095892 1643838 1878672 2191784 3287676 4383568 6575352 7553827 13150704 15107654 22661481 30215308 45322962 52876789 60430616 90645924 105753578 120861232 158630367 181291848 211507156 317260734 362583696 423014312 634521468 846028624 1269042936 2538085872