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3213213042 = 2313592293049
BaseRepresentation
bin1011111110000101…
…1011110101110010
322021221020010122110
42333201123311302
523040040304132
61250502150150
7142424601024
oct27741336562
98257203573
103213213042
1113a9858576
12758122356
133c29169c0
14226a68014
1513c15d1cc
hexbf85bd72

3213213042 has 64 divisors (see below), whose sum is σ = 7071120000. Its totient is φ = 967362048.

The previous prime is 3213213007. The next prime is 3213213043. The reversal of 3213213042 is 2403123123.

It is not an unprimeable number, because it can be changed into a prime (3213213043) 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, 1052334 + ... + 1055382.

It is an arithmetic number, because the mean of its divisors is an integer number (110486250).

Almost surely, 23213213042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213213042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3535560000).

3213213042 is an abundant number, since it is smaller than the sum of its proper divisors (3857906958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213213042 is a wasteful number, since it uses less digits than its factorization.

3213213042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3213213042 is about 56685.2100816430. The cubic root of 3213213042 is about 1475.6380335736.

Adding to 3213213042 its reverse (2403123123), we get a palindrome (5616336165).

The spelling of 3213213042 in words is "three billion, two hundred thirteen million, two hundred thirteen thousand, forty-two".

Divisors: 1 2 3 6 13 26 39 59 78 118 177 229 354 458 687 767 1374 1534 2301 2977 3049 4602 5954 6098 8931 9147 13511 17862 18294 27022 39637 40533 79274 81066 118911 175643 179891 237822 351286 359782 526929 539673 698221 1053858 1079346 1396442 2094663 2338583 4189326 4677166 7015749 9076873 14031498 18153746 27230619 41195039 54461238 82390078 123585117 247170234 535535507 1071071014 1606606521 3213213042