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425372080 = 245731107229
BaseRepresentation
bin11001010110101…
…010100110110000
31002122102010210111
4121112222212300
51332343401310
6110113111104
713353413560
oct3126524660
91078363714
10425372080
111a9125381
12ba558494
136a185c73
14406cada0
152752628a
hex195aa9b0

425372080 has 160 divisors (see below), whose sum is σ = 1182781440. Its totient is φ = 139207680.

The previous prime is 425372041. The next prime is 425372081. The reversal of 425372080 is 80273524.

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

It is not an unprimeable number, because it can be changed into a prime (425372081) 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, 1857406 + ... + 1857634.

It is an arithmetic number, because the mean of its divisors is an integer number (7392384).

Almost surely, 2425372080 is an apocalyptic number.

425372080 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 425372080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591390720).

425372080 is an abundant number, since it is smaller than the sum of its proper divisors (757409360).

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

425372080 is a wasteful number, since it uses less digits than its factorization.

425372080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 425372080 is about 20624.5504193425. The cubic root of 425372080 is about 752.0666437844.

The spelling of 425372080 in words is "four hundred twenty-five million, three hundred seventy-two thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 31 35 40 56 62 70 80 107 112 124 140 155 214 217 229 248 280 310 428 434 458 496 535 560 620 749 856 868 916 1070 1085 1145 1240 1498 1603 1712 1736 1832 2140 2170 2290 2480 2996 3206 3317 3472 3664 3745 4280 4340 4580 5992 6412 6634 7099 7490 8015 8560 8680 9160 11984 12824 13268 14198 14980 16030 16585 17360 18320 23219 24503 25648 26536 28396 29960 32060 33170 35495 46438 49006 49693 53072 56792 59920 64120 66340 70990 92876 98012 99386 113584 116095 122515 128240 132680 141980 171521 185752 196024 198772 232190 245030 248465 265360 283960 343042 371504 392048 397544 464380 490060 496930 567920 686084 759593 795088 857605 928760 980120 993860 1372168 1519186 1715210 1857520 1960240 1987720 2744336 3038372 3430420 3797965 3975440 5317151 6076744 6860840 7595930 10634302 12153488 13721680 15191860 21268604 26585755 30383720 42537208 53171510 60767440 85074416 106343020 212686040 425372080