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349908480 = 2932515187
BaseRepresentation
bin10100110110110…
…010111000000000
3220101102012012100
4110312302320000
51204034032410
654415430400
711446113225
oct2466627000
9811365170
10349908480
1116a572469
1299225400
135765364c
143468594c
1520abb8c0
hex14db2e00

349908480 has 120 divisors (see below), whose sum is σ = 1211911272. Its totient is φ = 93302784.

The previous prime is 349908479. The next prime is 349908509. The reversal of 349908480 is 84809943.

It is a happy number.

349908480 is a `hidden beast` number, since 3 + 499 + 0 + 84 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15447 + ... + 30633.

Almost surely, 2349908480 is an apocalyptic number.

349908480 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 349908480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605955636).

349908480 is an abundant number, since it is smaller than the sum of its proper divisors (862002792).

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

349908480 is a wasteful number, since it uses less digits than its factorization.

349908480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15216 (or 15197 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 349908480 is about 18705.8407990659. The cubic root of 349908480 is about 704.6684422536.

The spelling of 349908480 in words is "three hundred forty-nine million, nine hundred eight thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 512 576 640 720 768 960 1152 1280 1440 1536 1920 2304 2560 2880 3840 4608 5760 7680 11520 15187 23040 30374 45561 60748 75935 91122 121496 136683 151870 182244 227805 242992 273366 303740 364488 455610 485984 546732 607480 683415 728976 911220 971968 1093464 1214960 1366830 1457952 1822440 1943936 2186928 2429920 2733660 2915904 3644880 3887872 4373856 4859840 5467320 5831808 7289760 7775744 8747712 9719680 10934640 11663616 14579520 17495424 19439360 21869280 23327232 29159040 34990848 38878720 43738560 58318080 69981696 87477120 116636160 174954240 349908480