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1029660412 = 2211232311427
BaseRepresentation
bin111101010111110…
…101111011111100
32122202111011112211
4331113311323330
54102043113122
6250101110204
734341653254
oct7527657374
92582434484
101029660412
11489242120
122489b8364
13135423721
149aa6c964
15605de877
hex3d5f5efc

1029660412 has 72 divisors (see below), whose sum is σ = 2122670592. Its totient is φ = 432933600.

The previous prime is 1029660397. The next prime is 1029660421. The reversal of 1029660412 is 2140669201.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 720843 + ... + 722269.

It is an arithmetic number, because the mean of its divisors is an integer number (29481536).

Almost surely, 21029660412 is an apocalyptic number.

It is an amenable number.

1029660412 is an abundant number, since it is smaller than the sum of its proper divisors (1093010180).

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

1029660412 is a wasteful number, since it uses less digits than its factorization.

1029660412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519 (or 1494 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1029660412 is about 32088.3220502413. The cubic root of 1029660412 is about 1009.7906346412.

The spelling of 1029660412 in words is "one billion, twenty-nine million, six hundred sixty thousand, four hundred twelve".

Divisors: 1 2 4 11 22 23 31 44 46 62 92 124 253 341 506 529 682 713 1012 1058 1364 1426 1427 2116 2852 2854 5708 5819 7843 11638 15686 15697 16399 23276 31372 31394 32798 32821 44237 62788 65596 65642 88474 131284 176948 180389 360778 361031 486607 721556 722062 754883 973214 1017451 1444124 1509766 1946428 2034902 3019532 4069804 8303713 11191961 16607426 22383922 23401373 33214852 44767844 46802746 93605492 257415103 514830206 1029660412