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415464420 = 223571516551
BaseRepresentation
bin11000110000110…
…111101111100100
31001221202210001010
4120300313233210
51322324330140
6105120502220
713203250350
oct3060675744
91057683033
10415464420
111a3578628
12b717a970
13680c7447
143d26c460
152671a880
hex18c37be4

415464420 has 96 divisors (see below), whose sum is σ = 1338494976. Its totient is φ = 94320000.

The previous prime is 415464407. The next prime is 415464451. The reversal of 415464420 is 24464514.

It is a happy number.

It is a super-2 number, since 2×4154644202 = 345221368571872800, which contains 22 as substring.

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, 60145 + ... + 66695.

It is an arithmetic number, because the mean of its divisors is an integer number (13942656).

Almost surely, 2415464420 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 415464420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669247488).

415464420 is an abundant number, since it is smaller than the sum of its proper divisors (923030556).

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

415464420 is a wasteful number, since it uses less digits than its factorization.

415464420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6721 (or 6719 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 415464420 is about 20382.9443407963. The cubic root of 415464420 is about 746.1817318704.

The spelling of 415464420 in words is "four hundred fifteen million, four hundred sixty-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 151 210 302 420 453 604 755 906 1057 1510 1812 2114 2265 3020 3171 4228 4530 5285 6342 6551 9060 10570 12684 13102 15855 19653 21140 26204 31710 32755 39306 45857 63420 65510 78612 91714 98265 131020 137571 183428 196530 229285 275142 393060 458570 550284 687855 917140 989201 1375710 1978402 2751420 2967603 3956804 4946005 5935206 6924407 9892010 11870412 13848814 14838015 19784020 20773221 27697628 29676030 34622035 41546442 59352060 69244070 83092884 103866105 138488140 207732210 415464420