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386623020 = 223571948449
BaseRepresentation
bin10111000010110…
…110011000101100
3222221111111002010
4113002312120230
51242433414040
6102210401220
712403145550
oct2702663054
9887444063
10386623020
11189269663
12a9590210
1362139924
14394c1860
1523e1ee80
hex170b662c

386623020 has 96 divisors (see below), whose sum is σ = 1302336000. Its totient is φ = 83718144.

The previous prime is 386623009. The next prime is 386623033. The reversal of 386623020 is 20326683.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16245 + ... + 32204.

It is an arithmetic number, because the mean of its divisors is an integer number (13566000).

Almost surely, 2386623020 is an apocalyptic number.

386623020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

386623020 is an abundant number, since it is smaller than the sum of its proper divisors (915712980).

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

386623020 is a wasteful number, since it uses less digits than its factorization.

386623020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48487 (or 48485 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 386623020 is about 19662.7317532432. The cubic root of 386623020 is about 728.4994635350.

The spelling of 386623020 in words is "three hundred eighty-six million, six hundred twenty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 57 60 70 76 84 95 105 114 133 140 190 210 228 266 285 380 399 420 532 570 665 798 1140 1330 1596 1995 2660 3990 7980 48449 96898 145347 193796 242245 290694 339143 484490 581388 678286 726735 920531 968980 1017429 1356572 1453470 1695715 1841062 2034858 2761593 2906940 3391430 3682124 4069716 4602655 5087145 5523186 6443717 6782860 9205310 10174290 11046372 12887434 13807965 18410620 19331151 20348580 25774868 27615930 32218585 38662302 55231860 64437170 77324604 96655755 128874340 193311510 386623020