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147838494720 = 2113572371421
BaseRepresentation
bin1000100110101111011…
…1000110100000000000
3112010121010012200001110
42021223313012200000
54410233123312340
6151525512003320
713452401320410
oct2115367064000
9463533180043
10147838494720
1157774a81254
122479a990540
1310c30808457
147226694640
153ca3e68680
hex226bdc6800

147838494720 has 768 divisors, whose sum is σ = 573338787840. Its totient is φ = 31791513600.

The previous prime is 147838494653. The next prime is 147838494751. The reversal of 147838494720 is 27494838741.

It is a tau number, because it is divible by the number of its divisors (768).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 351160110 + ... + 351160530.

It is an arithmetic number, because the mean of its divisors is an integer number (746534880).

Almost surely, 2147838494720 is an apocalyptic number.

147838494720 is a gapful number since it is divisible by the number (10) 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 147838494720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286669393920).

147838494720 is an abundant number, since it is smaller than the sum of its proper divisors (425500293120).

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

147838494720 is a wasteful number, since it uses less digits than its factorization.

147838494720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 147838494720 in words is "one hundred forty-seven billion, eight hundred thirty-eight million, four hundred ninety-four thousand, seven hundred twenty".