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2890012146 = 237232991731
BaseRepresentation
bin1010110001000010…
…0001010111110010
321110102001211100220
42230100201113302
521404320342041
61154434553510
7131421461250
oct25420412762
97412054326
102890012146
11125337799a
12687a38896
13370984878
141d5b755d0
1511dab9d66
hexac4215f2

2890012146 has 32 divisors (see below), whose sum is σ = 6892950528. Its totient is φ = 789816720.

The previous prime is 2890012133. The next prime is 2890012171. The reversal of 2890012146 is 6412100982.

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, 1494900 + ... + 1496831.

It is an arithmetic number, because the mean of its divisors is an integer number (215404704).

Almost surely, 22890012146 is an apocalyptic number.

2890012146 is an abundant number, since it is smaller than the sum of its proper divisors (4002938382).

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

2890012146 is a wasteful number, since it uses less digits than its factorization.

2890012146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991766.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 2890012146 is about 53758.8331904628. The cubic root of 2890012146 is about 1424.4041248876.

The spelling of 2890012146 in words is "two billion, eight hundred ninety million, twelve thousand, one hundred forty-six".

Divisors: 1 2 3 6 7 14 21 23 42 46 69 138 161 322 483 966 2991731 5983462 8975193 17950386 20942117 41884234 62826351 68809813 125652702 137619626 206429439 412858878 481668691 963337382 1445006073 2890012146