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2002020988 = 22113523719
BaseRepresentation
bin111011101010100…
…0110101001111100
312011112011012111111
41313111012221330
513100004132423
6530354131404
7100416616612
oct16725065174
95145135444
102002020988
119380a8000
1247a580b64
1325ba04206
1414dc636b2
15bab6160d
hex77546a7c

2002020988 has 48 divisors (see below), whose sum is σ = 3866365440. Its totient is φ = 907006320.

The previous prime is 2002020973. The next prime is 2002020989. The reversal of 2002020988 is 8890202002.

It is a super-2 number, since 2×20020209882 = 8016176072784992288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002020989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2784093 + ... + 2784811.

It is an arithmetic number, because the mean of its divisors is an integer number (80549280).

Almost surely, 22002020988 is an apocalyptic number.

It is an amenable number.

2002020988 is a deficient number, since it is larger than the sum of its proper divisors (1864344452).

2002020988 is a wasteful number, since it uses less digits than its factorization.

2002020988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2002020988 is about 44743.9491775145. The cubic root of 2002020988 is about 1260.3452879174.

The spelling of 2002020988 in words is "two billion, two million, twenty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 11 22 44 121 242 484 523 719 1046 1331 1438 2092 2662 2876 5324 5753 7909 11506 15818 23012 31636 63283 86999 126566 173998 253132 347996 376037 696113 752074 956989 1392226 1504148 1913978 2784452 3827956 4136407 8272814 16545628 45500477 91000954 182001908 500505247 1001010494 2002020988