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1021323212 = 2271317165049
BaseRepresentation
bin111100111000000…
…010011111001100
32122011210121001122
4330320002133030
54042424320322
6245202300112
734211050460
oct7470023714
92564717048
101021323212
11484568278
12246057638
13133794980
14998dc4a0
155e9e4442
hex3ce027cc

1021323212 has 48 divisors (see below), whose sum is σ = 2329185600. Its totient is φ = 380270592.

The previous prime is 1021323209. The next prime is 1021323223. The reversal of 1021323212 is 2123231201.

1021323212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10213232122 = 2086202206739993888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76337 + ... + 88712.

It is an arithmetic number, because the mean of its divisors is an integer number (48524700).

Almost surely, 21021323212 is an apocalyptic number.

It is an amenable number.

1021323212 is an abundant number, since it is smaller than the sum of its proper divisors (1307862388).

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

1021323212 is a wasteful number, since it uses less digits than its factorization.

1021323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165090 (or 165088 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1021323212 is about 31958.1478186706. The cubic root of 1021323212 is about 1007.0578074973.

Adding to 1021323212 its reverse (2123231201), we get a palindrome (3144554413).

The spelling of 1021323212 in words is "one billion, twenty-one million, three hundred twenty-three thousand, two hundred twelve".

Divisors: 1 2 4 7 13 14 17 26 28 34 52 68 91 119 182 221 238 364 442 476 884 1547 3094 6188 165049 330098 660196 1155343 2145637 2310686 2805833 4291274 4621372 5611666 8582548 11223332 15019459 19640831 30038918 36475829 39281662 60077836 72951658 78563324 145903316 255330803 510661606 1021323212