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20200013001 = 32719113149341
BaseRepresentation
bin10010110100000000…
…111011110011001001
31221010202212222111200
4102310000323303021
5312332200404001
613140232214413
71313401164120
oct226400736311
957122788450
1020200013001
118626420823
123ab8b3a409
131b9bc67b1c
14d98aacab7
157d35c9086
hex4b403bcc9

20200013001 has 48 divisors (see below), whose sum is σ = 35411975040. Its totient is φ = 10838499840.

The previous prime is 20200012991. The next prime is 20200013021. The reversal of 20200013001 is 10031000202.

It is a happy number.

It is not a de Polignac number, because 20200013001 - 29 = 20200012489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20200013021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60591 + ... + 209931.

It is an arithmetic number, because the mean of its divisors is an integer number (737749480).

Almost surely, 220200013001 is an apocalyptic number.

20200013001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20200013001 is a deficient number, since it is larger than the sum of its proper divisors (15211962039).

20200013001 is a wasteful number, since it uses less digits than its factorization.

20200013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149486 (or 149483 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 20200013001 its reverse (10031000202), we get a palindrome (30231013203).

The spelling of 20200013001 in words is "twenty billion, two hundred million, thirteen thousand, one".

Divisors: 1 3 7 9 19 21 57 63 113 133 171 339 399 791 1017 1197 2147 2373 6441 7119 15029 19323 45087 135261 149341 448023 1045387 1344069 2837479 3136161 8512437 9408483 16875533 19862353 25537311 50626599 59587059 118128731 151879797 178761177 320635127 354386193 961905381 1063158579 2244445889 2885716143 6733337667 20200013001