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3013131131 = 194347131599
BaseRepresentation
bin1011001110011000…
…1011101101111011
321202222201220212022
42303212023231323
522132330144011
61214553505055
7134445122603
oct26346135573
97688656768
103013131131
11130691a01a
1270111218b
1339033133a
14208263c03
151297d98db
hexb398bb7b

3013131131 has 32 divisors (see below), whose sum is σ = 3345408000. Its totient is φ = 2703486240.

The previous prime is 3013131127. The next prime is 3013131133. The reversal of 3013131131 is 1311313103.

It is a cyclic number.

It is not a de Polignac number, because 3013131131 - 22 = 3013131127 is a prime.

It is a super-2 number, since 2×30131311312 = 18157918425202678322, which contains 22 as substring.

It is a Duffinian number.

3013131131 is a modest number, since divided by 131131 gives 3013 as remainder.

It is not an unprimeable number, because it can be changed into a prime (3013131133) 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, 5029970 + ... + 5030568.

It is an arithmetic number, because the mean of its divisors is an integer number (104544000).

Almost surely, 23013131131 is an apocalyptic number.

3013131131 is a deficient number, since it is larger than the sum of its proper divisors (332276869).

3013131131 is a wasteful number, since it uses less digits than its factorization.

3013131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 3013131131 is about 54891.9951450118. The cubic root of 3013131131 is about 1444.3507707167.

Adding to 3013131131 its reverse (1311313103), we get a palindrome (4324444234).

The spelling of 3013131131 in words is "three billion, thirteen million, one hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 19 43 47 131 599 817 893 2021 2489 5633 6157 11381 25757 28153 38399 78469 107027 116983 264751 489383 534907 1210579 1490911 3374167 3688043 5030269 23001001 64109173 70072817 158585849 3013131131