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142748863488 = 21034721131103
BaseRepresentation
bin1000010011110001111…
…1101100110000000000
3111122110102011121120000
42010330133230300000
54314322202112423
6145324455320000
713212310214400
oct2047437546000
9448412147500
10142748863488
11555a3014a50
12237ba380000
13105cc22673a
146ca2740800
153aa7209843
hex213c7ecc00

142748863488 has 1320 divisors, whose sum is σ = 563822797824. Its totient is φ = 35533209600.

The previous prime is 142748863469. The next prime is 142748863489. The reversal of 142748863488 is 884368847241.

142748863488 is a `hidden beast` number, since 1 + 4 + 2 + 74 + 8 + 86 + 3 + 488 = 666.

It is a super-2 number, since 2×1427488634882 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142748863489) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1385911245 + ... + 1385911347.

Almost surely, 2142748863488 is an apocalyptic number.

142748863488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142748863488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281911398912).

142748863488 is an abundant number, since it is smaller than the sum of its proper divisors (421073934336).

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

142748863488 is a wasteful number, since it uses less digits than its factorization.

142748863488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 157 counting only the distinct ones).

The product of its digits is 66060288, while the sum is 63.

The spelling of 142748863488 in words is "one hundred forty-two billion, seven hundred forty-eight million, eight hundred sixty-three thousand, four hundred eighty-eight".