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2026987788 = 223761735419
BaseRepresentation
bin111100011010001…
…0110000100001100
312020021010122111210
41320310112010030
513122402102123
6533045214420
7101142053250
oct17064260414
95207118453
102026987788
119501aaa21
12486a01410
13263c36277
141532c2260
15bce43e93
hex78d1610c

2026987788 has 96 divisors (see below), whose sum is σ = 5570199040. Its totient is φ = 561738240.

The previous prime is 2026987763. The next prime is 2026987789. The reversal of 2026987788 is 8877896202.

It is a super-2 number, since 2×20269877882 = 8217358985402265888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2026987789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 371343 + ... + 376761.

Almost surely, 22026987788 is an apocalyptic number.

2026987788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2026987788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2785099520).

2026987788 is an abundant number, since it is smaller than the sum of its proper divisors (3543211252).

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

2026987788 is a wasteful number, since it uses less digits than its factorization.

2026987788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567 (or 5565 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 57.

The square root of 2026987788 is about 45022.0811158258. The cubic root of 2026987788 is about 1265.5628293216.

The spelling of 2026987788 in words is "two billion, twenty-six million, nine hundred eighty-seven thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 61 73 84 122 146 183 219 244 292 366 427 438 511 732 854 876 1022 1281 1533 1708 2044 2562 3066 4453 5124 5419 6132 8906 10838 13359 16257 17812 21676 26718 31171 32514 37933 53436 62342 65028 75866 93513 113799 124684 151732 187026 227598 330559 374052 395587 455196 661118 791174 991677 1186761 1322236 1582348 1983354 2313913 2373522 2769109 3966708 4627826 4747044 5538218 6941739 8307327 9255652 11076436 13883478 16614654 24130807 27766956 33229308 48261614 72392421 96523228 144784842 168915649 289569684 337831298 506746947 675662596 1013493894 2026987788