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42202980 = 22325234461
BaseRepresentation
bin1010000011111…
…1011101100100
32221102010121100
42200333131210
541300443410
64104320100
71021501521
oct240773544
987363540
1042202980
11219057a6
1212173030
1389884a1
145868148
153a898c0
hex283f764

42202980 has 36 divisors (see below), whose sum is σ = 128016252. Its totient is φ = 11254080.

The previous prime is 42202967. The next prime is 42202991. The reversal of 42202980 is 8920224.

It can be written as a sum of positive squares in 2 ways, for example, as 26378496 + 15824484 = 5136^2 + 3978^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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, 117051 + ... + 117410.

It is an arithmetic number, because the mean of its divisors is an integer number (3556007).

Almost surely, 242202980 is an apocalyptic number.

It is an amenable number.

42202980 is an abundant number, since it is smaller than the sum of its proper divisors (85813272).

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

42202980 is a wasteful number, since it uses less digits than its factorization.

42202980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234476 (or 234471 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 42202980 is about 6496.3820700448. The cubic root of 42202980 is about 348.1617361557.

The spelling of 42202980 in words is "forty-two million, two hundred two thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 234461 468922 703383 937844 1172305 1406766 2110149 2344610 2813532 3516915 4220298 4689220 7033830 8440596 10550745 14067660 21101490 42202980