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20332030131 = 337195661941
BaseRepresentation
bin10010111011111000…
…100010100010110011
31221110222022010222000
4102323320202202303
5313114444431011
613201305545043
71316563255530
oct227370424263
957428263860
1020332030131
1186939a0196
123b351a5183
131bc040b77a
14dac435d87
157deea5356
hex4bbe228b3

20332030131 has 32 divisors (see below), whose sum is σ = 36236428800. Its totient is φ = 11006811360.

The previous prime is 20332030097. The next prime is 20332030151. The reversal of 20332030131 is 13103023302.

20332030131 is a `hidden beast` number, since 2 + 0 + 332 + 0 + 301 + 31 = 666.

It is not a de Polignac number, because 20332030131 - 27 = 20332030003 is a prime.

It is a super-2 number, since 2×203320301312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20332030151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2827380 + ... + 2834561.

It is an arithmetic number, because the mean of its divisors is an integer number (1132388400).

Almost surely, 220332030131 is an apocalyptic number.

20332030131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20332030131 is a deficient number, since it is larger than the sum of its proper divisors (15904398669).

20332030131 is a wasteful number, since it uses less digits than its factorization.

20332030131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661976 (or 5661970 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20332030131 its reverse (13103023302), we get a palindrome (33435053433).

The spelling of 20332030131 in words is "twenty billion, three hundred thirty-two million, thirty thousand, one hundred thirty-one".

Divisors: 1 3 7 9 19 21 27 57 63 133 171 189 399 513 1197 3591 5661941 16985823 39633587 50957469 107576879 118900761 152872407 322730637 356702283 753038153 968191911 1070106849 2259114459 2904575733 6777343377 20332030131