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3213133021 = 73712405919
BaseRepresentation
bin1011111110000100…
…1000010011011101
322021221002001212201
42333201020103131
523040030224041
61250500331501
7142424115520
oct27741102335
98257061781
103213133021
1113a980343a
127580a3b91
133c28b9457
14226a46bb7
1513c144631
hexbf8484dd

3213133021 has 8 divisors (see below), whose sum is σ = 3771399680. Its totient is φ = 2679678288.

The previous prime is 3213133019. The next prime is 3213133057. The reversal of 3213133021 is 1203313123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3213133021 - 21 = 3213133019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3213133021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213133061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6202701 + ... + 6203218.

It is an arithmetic number, because the mean of its divisors is an integer number (471424960).

Almost surely, 23213133021 is an apocalyptic number.

It is an amenable number.

3213133021 is a deficient number, since it is larger than the sum of its proper divisors (558266659).

3213133021 is a wasteful number, since it uses less digits than its factorization.

3213133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12405963.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 3213133021 is about 56684.5042405771. The cubic root of 3213133021 is about 1475.6257838400.

Adding to 3213133021 its reverse (1203313123), we get a palindrome (4416446144).

The spelling of 3213133021 in words is "three billion, two hundred thirteen million, one hundred thirty-three thousand, twenty-one".

Divisors: 1 7 37 259 12405919 86841433 459019003 3213133021