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142124254452 = 22331976680027
BaseRepresentation
bin1000010001011101000…
…1000000010011110100
3111120211212212012001000
42010113101000103310
54312032302120302
6145142504003300
713160654141655
oct2042721002364
9446755765030
10142124254452
1155302488a34
1223665160530
131052c9c28ab
146c437cd52c
153a6c47a31c
hex21174404f4

142124254452 has 48 divisors (see below), whose sum is σ = 370340752320. Its totient is φ = 47134263456.

The previous prime is 142124254409. The next prime is 142124254511. The reversal of 142124254452 is 254452421241.

142124254452 is a `hidden beast` number, since 1 + 4 + 21 + 2 + 42 + 544 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 3318738 + ... + 3361289.

It is an arithmetic number, because the mean of its divisors is an integer number (7715432340).

Almost surely, 2142124254452 is an apocalyptic number.

142124254452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142124254452 is an abundant number, since it is smaller than the sum of its proper divisors (228216497868).

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

142124254452 is a wasteful number, since it uses less digits than its factorization.

142124254452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680237 (or 6680229 counting only the distinct ones).

The product of its digits is 102400, while the sum is 36.

Adding to 142124254452 its reverse (254452421241), we get a palindrome (396576675693).

The spelling of 142124254452 in words is "one hundred forty-two billion, one hundred twenty-four million, two hundred fifty-four thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 197 394 591 788 1182 1773 2364 3546 5319 7092 10638 21276 6680027 13360054 20040081 26720108 40080162 60120243 80160324 120240486 180360729 240480972 360721458 721442916 1315965319 2631930638 3947895957 5263861276 7895791914 11843687871 15791583828 23687375742 35531063613 47374751484 71062127226 142124254452