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415252020 = 223571107911
BaseRepresentation
bin11000110000000…
…011111000110100
31001221100222200110
4120300003320310
51322301031040
6105112143020
713201404201
oct3060037064
91057328613
10415252020
111a3442a97
12b7097a70
1368051871
143d214ca8
15266c7980
hex18c03e34

415252020 has 96 divisors (see below), whose sum is σ = 1191407616. Its totient is φ = 108035200.

The previous prime is 415252007. The next prime is 415252021. The reversal of 415252020 is 20252514.

It is a happy number.

It is a super-2 number, since 2×4152520202 = 344868480228160800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415252021) 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, 455365 + ... + 456275.

It is an arithmetic number, because the mean of its divisors is an integer number (12410496).

Almost surely, 2415252020 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 415252020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595703808).

415252020 is an abundant number, since it is smaller than the sum of its proper divisors (776155596).

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

415252020 is a wasteful number, since it uses less digits than its factorization.

415252020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 415252020 is about 20377.7334362779. The cubic root of 415252020 is about 746.0545520942.

The spelling of 415252020 in words is "four hundred fifteen million, two hundred fifty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 71 107 142 213 214 284 321 355 426 428 535 642 710 852 911 1065 1070 1284 1420 1605 1822 2130 2140 2733 3210 3644 4260 4555 5466 6420 7597 9110 10932 13665 15194 18220 22791 27330 30388 37985 45582 54660 64681 75970 91164 97477 113955 129362 151940 194043 194954 227910 258724 292431 323405 388086 389908 455820 487385 584862 646810 776172 970215 974770 1169724 1293620 1462155 1940430 1949540 2924310 3880860 5848620 6920867 13841734 20762601 27683468 34604335 41525202 69208670 83050404 103813005 138417340 207626010 415252020