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1148838215020 = 2251572039179437
BaseRepresentation
bin10000101101111100000…
…101111111110101101100
311001211100111210010222021
4100231330011333311230
5122310310040340040
62235434033555524
7146000165464036
oct20557405776554
94054314703867
101148838215020
11403246249871
1216679b715ba4
1384447c43a62
143d8657b4c56
151ed3d35824a
hex10b7c17fd6c

1148838215020 has 48 divisors (see below), whose sum is σ = 2429131158720. Its totient is φ = 456381828864.

The previous prime is 1148838215011. The next prime is 1148838215033. The reversal of 1148838215020 is 205128388411.

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, 6312742 + ... + 6492178.

It is an arithmetic number, because the mean of its divisors is an integer number (50606899140).

Almost surely, 21148838215020 is an apocalyptic number.

1148838215020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148838215020 is an abundant number, since it is smaller than the sum of its proper divisors (1280292943700).

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

1148838215020 is a wasteful number, since it uses less digits than its factorization.

1148838215020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181642 (or 181640 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 43.

The spelling of 1148838215020 in words is "one trillion, one hundred forty-eight billion, eight hundred thirty-eight million, two hundred fifteen thousand, twenty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 2039 3140 4078 8156 10195 20390 40780 179437 320123 358874 640246 717748 897185 1280492 1600615 1794370 3201230 3588740 6402460 28171609 56343218 112686436 140858045 281716090 365872043 563432180 731744086 1463488172 1829360215 3658720430 7317440860 57441910751 114883821502 229767643004 287209553755 574419107510 1148838215020