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2020002131 = 73673832053
BaseRepresentation
bin111100001100110…
…1100100101010011
312012202222201222202
41320121230211103
513114110032011
6532235353415
7101025510020
oct17031544523
95182881882
102020002131
11947269554
124845b286b
1326265b744
141523c4547
15bc51423b
hex7866c953

2020002131 has 16 divisors (see below), whose sum is σ = 2322038784. Its totient is φ = 1721365344.

The previous prime is 2020002073. The next prime is 2020002139. The reversal of 2020002131 is 1312000202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2020002131 is a prime.

It is a super-2 number, since 2×20200021312 = 8160817218489082322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020002139) 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, 982901 + ... + 984953.

It is an arithmetic number, because the mean of its divisors is an integer number (145127424).

Almost surely, 22020002131 is an apocalyptic number.

2020002131 is a deficient number, since it is larger than the sum of its proper divisors (302036653).

2020002131 is a wasteful number, since it uses less digits than its factorization.

2020002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2020002131 is about 44944.4338155461. The cubic root of 2020002131 is about 1264.1073093865.

Adding to 2020002131 its reverse (1312000202), we get a palindrome (3332002333).

The spelling of 2020002131 in words is "two billion, twenty million, two thousand, one hundred thirty-one".

Divisors: 1 7 367 383 2053 2569 2681 14371 140561 753451 786299 983927 5274157 5504093 288571733 2020002131