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42203140 = 22572511201
BaseRepresentation
bin1010000011111…
…1100000000100
32221102010211021
42200333200010
541301000030
64104320524
71021502140
oct240774004
987363737
1042203140
1121905931
1212173144
138988595
145868220
153a8997a
hex283f804

42203140 has 48 divisors (see below), whose sum is σ = 101775744. Its totient is φ = 14400000.

The previous prime is 42203131. The next prime is 42203171. The reversal of 42203140 is 4130224.

It is a super-2 number, since 2×422031402 = 3562210051719200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34540 + ... + 35740.

It is an arithmetic number, because the mean of its divisors is an integer number (2120328).

Almost surely, 242203140 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 42203140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50887872).

42203140 is an abundant number, since it is smaller than the sum of its proper divisors (59572604).

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

42203140 is a wasteful number, since it uses less digits than its factorization.

42203140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468 (or 1466 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42203140 is about 6496.3943845798. The cubic root of 42203140 is about 348.1621761389.

Adding to 42203140 its reverse (4130224), we get a palindrome (46333364).

The spelling of 42203140 in words is "forty-two million, two hundred three thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 251 502 1004 1201 1255 1757 2402 2510 3514 4804 5020 6005 7028 8407 8785 12010 16814 17570 24020 33628 35140 42035 84070 168140 301451 602902 1205804 1507255 2110157 3014510 4220314 6029020 8440628 10550785 21101570 42203140