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42002002242 = 23213921179561
BaseRepresentation
bin100111000111100000…
…111011000101000010
311000102012011210021200
4213013200323011002
51142010003032432
631143452402030
73014564062014
oct470740730502
9130365153250
1042002002242
11168a4042a52
128182476316
133c64a7b085
1420664281b4
15115c642a7c
hex9c783b142

42002002242 has 48 divisors (see below), whose sum is σ = 92094606240. Its totient is φ = 13833892800.

The previous prime is 42002002123. The next prime is 42002002249. The reversal of 42002002242 is 24220020024.

42002002242 is a `hidden beast` number, since 420 + 0 + 2 + 0 + 0 + 2 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (42002002249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 488142 + ... + 567702.

It is an arithmetic number, because the mean of its divisors is an integer number (1918637630).

Almost surely, 242002002242 is an apocalyptic number.

42002002242 is an abundant number, since it is smaller than the sum of its proper divisors (50092603998).

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

42002002242 is a wasteful number, since it uses less digits than its factorization.

42002002242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79919 (or 79916 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 42002002242 its reverse (24220020024), we get a palindrome (66222022266).

The spelling of 42002002242 in words is "forty-two billion, two million, two thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 139 211 278 417 422 633 834 1251 1266 1899 2502 3798 29329 58658 79561 87987 159122 175974 238683 263961 477366 527922 716049 1432098 11058979 16787371 22117958 33176937 33574742 50362113 66353874 99530811 100724226 151086339 199061622 302172678 2333444569 4666889138 7000333707 14000667414 21001001121 42002002242