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445925040 = 243511533187
BaseRepresentation
bin11010100101000…
…100011010110000
31011002002100011020
4122211010122300
51403124100130
6112125415440
714023205001
oct3245043260
91132070136
10445925040
112097930a0
1210540a580
1371500c92
144331b1a8
1529235e10
hex1a9446b0

445925040 has 160 divisors (see below), whose sum is σ = 1536973056. Its totient is φ = 106030080.

The previous prime is 445925033. The next prime is 445925047. The reversal of 445925040 is 40529544.

It is an interprime number because it is at equal distance from previous prime (445925033) and next prime (445925047).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 445924992 and 445925010.

It is not an unprimeable number, because it can be changed into a prime (445925047) 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, 138327 + ... + 141513.

Almost surely, 2445925040 is an apocalyptic number.

445925040 is a gapful number since it is divisible by the number (40) 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 445925040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768486528).

445925040 is an abundant number, since it is smaller than the sum of its proper divisors (1091048016).

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

445925040 is a wasteful number, since it uses less digits than its factorization.

445925040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267 (or 3261 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 445925040 is about 21116.9372779293. The cubic root of 445925040 is about 763.9893184914.

The spelling of 445925040 in words is "four hundred forty-five million, nine hundred twenty-five thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 53 55 60 66 80 88 106 110 120 132 159 165 176 212 220 240 264 265 318 330 424 440 528 530 583 636 660 795 848 880 1060 1166 1272 1320 1590 1749 2120 2332 2544 2640 2915 3180 3187 3498 4240 4664 5830 6360 6374 6996 8745 9328 9561 11660 12720 12748 13992 15935 17490 19122 23320 25496 27984 31870 34980 35057 38244 46640 47805 50992 63740 69960 70114 76488 95610 105171 127480 139920 140228 152976 168911 175285 191220 210342 254960 280456 337822 350570 382440 420684 506733 525855 560912 675644 701140 764880 841368 844555 1013466 1051710 1351288 1402280 1682736 1689110 1858021 2026932 2103420 2533665 2702576 2804560 3378220 3716042 4053864 4206840 5067330 5574063 6756440 7432084 8107728 8413680 9290105 10134660 11148126 13512880 14864168 18580210 20269320 22296252 27870315 29728336 37160420 40538640 44592504 55740630 74320840 89185008 111481260 148641680 222962520 445925040