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469980 = 223257373
BaseRepresentation
bin1110010101111011100
3212212200200
41302233130
5110014410
614023500
73665130
oct1625734
9785620
10469980
112a1115
121a7b90
13135bc4
14c33c0
15943c0
hex72bdc

469980 has 72 divisors (see below), whose sum is σ = 1633632. Its totient is φ = 107136.

The previous prime is 469979. The next prime is 469993. The reversal of 469980 is 89964.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1074 + ... + 1446.

2469980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 469980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816816).

469980 is an abundant number, since it is smaller than the sum of its proper divisors (1163652).

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

469980 is a wasteful number, since it uses less digits than its factorization.

469980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 469980 is about 685.5508733858. The cubic root of 469980 is about 77.7486981237.

The spelling of 469980 in words is "four hundred sixty-nine thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 373 420 630 746 1119 1260 1492 1865 2238 2611 3357 3730 4476 5222 5595 6714 7460 7833 10444 11190 13055 13428 15666 16785 22380 23499 26110 31332 33570 39165 46998 52220 67140 78330 93996 117495 156660 234990 469980