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470890400 = 25522920297
BaseRepresentation
bin11100000100010…
…011011110100000
31012211001201012012
4130010103132200
51431021443100
6114420452052
714445334211
oct3404233640
91184051165
10470890400
11221894a22
1211184a028
1376732496
1446779408
152b518135
hex1c1137a0

470890400 has 72 divisors (see below), whose sum is σ = 1189259820. Its totient is φ = 181852160.

The previous prime is 470890397. The next prime is 470890411. The reversal of 470890400 is 4098074.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 169937296 + 300953104 = 13036^2 + 17348^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 13052 + ... + 33348.

Almost surely, 2470890400 is an apocalyptic number.

470890400 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 470890400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594629910).

470890400 is an abundant number, since it is smaller than the sum of its proper divisors (718369420).

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

470890400 is a wasteful number, since it uses less digits than its factorization.

470890400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20346 (or 20333 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 470890400 is about 21700.0092165879. The cubic root of 470890400 is about 777.9886817323.

The spelling of 470890400 in words is "four hundred seventy million, eight hundred ninety thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 29 32 40 50 58 80 100 116 145 160 200 232 290 400 464 580 725 800 928 1160 1450 2320 2900 4640 5800 11600 20297 23200 40594 81188 101485 162376 202970 324752 405940 507425 588613 649504 811880 1014850 1177226 1623760 2029700 2354452 2943065 3247520 4059400 4708904 5886130 8118800 9417808 11772260 14715325 16237600 18835616 23544520 29430650 47089040 58861300 94178080 117722600 235445200 470890400