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349624860 = 223513974621
BaseRepresentation
bin10100110101101…
…101101000011100
3220100212210010220
4110311231220130
51204000443420
654405401340
711443522314
oct2465555034
9810783126
10349624860
1116a399372
1299109250
1357584520
1434610444
1520a62840
hex14d6da1c

349624860 has 96 divisors (see below), whose sum is σ = 1065352512. Its totient is φ = 85155840.

The previous prime is 349624859. The next prime is 349624861. The reversal of 349624860 is 68426943.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (349624859) and next prime (349624861).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349624861) 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, 73350 + ... + 77970.

It is an arithmetic number, because the mean of its divisors is an integer number (11097422).

Almost surely, 2349624860 is an apocalyptic number.

349624860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 349624860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532676256).

349624860 is an abundant number, since it is smaller than the sum of its proper divisors (715727652).

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

349624860 is a wasteful number, since it uses less digits than its factorization.

349624860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4743 (or 4741 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 349624860 is about 18698.2582076513. The cubic root of 349624860 is about 704.4779999923.

The spelling of 349624860 in words is "three hundred forty-nine million, six hundred twenty-four thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 97 130 156 194 195 260 291 388 390 485 582 780 970 1164 1261 1455 1940 2522 2910 3783 4621 5044 5820 6305 7566 9242 12610 13863 15132 18484 18915 23105 25220 27726 37830 46210 55452 60073 69315 75660 92420 120146 138630 180219 240292 277260 300365 360438 448237 600730 720876 896474 901095 1201460 1344711 1792948 1802190 2241185 2689422 3604380 4482370 5378844 5827081 6723555 8964740 11654162 13447110 17481243 23308324 26894220 29135405 34962486 58270810 69924972 87406215 116541620 174812430 349624860