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3213013131 = 321632190193
BaseRepresentation
bin1011111110000010…
…1011000010001011
322021220211222102100
42333200223002023
523040012410011
61250454004443
7142423106136
oct27740530213
98256758370
103213013131
1113a9731359
12758046723
133c2876a03
14226a1521d
1513c11dd56
hexbf82b08b

3213013131 has 12 divisors (see below), whose sum is σ = 4669493608. Its totient is φ = 2128866624.

The previous prime is 3213013103. The next prime is 3213013147. The reversal of 3213013131 is 1313103123.

It is a happy number.

3213013131 is a `hidden beast` number, since 321 + 30 + 1 + 313 + 1 = 666.

3213013131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3213013131 - 211 = 3213011083 is a prime.

It is a super-2 number, since 2×32130131312 = 20646906759956846322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3213013231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1093630 + ... + 1096563.

Almost surely, 23213013131 is an apocalyptic number.

3213013131 is a deficient number, since it is larger than the sum of its proper divisors (1456480477).

3213013131 is a wasteful number, since it uses less digits than its factorization.

3213013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190362 (or 2190359 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3213013131 is about 56683.4467106580. The cubic root of 3213013131 is about 1475.6074305200.

Adding to 3213013131 its reverse (1313103123), we get a palindrome (4526116254).

The spelling of 3213013131 in words is "three billion, two hundred thirteen million, thirteen thousand, one hundred thirty-one".

Divisors: 1 3 9 163 489 1467 2190193 6570579 19711737 357001459 1071004377 3213013131