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143285930640 = 243352937211293
BaseRepresentation
bin1000010101110010000…
…0011100101010010000
3111200211211202110012000
42011130200130222100
54321422144240030
6145454042434000
713231521213006
oct2053440345220
9450754673160
10143285930640
11558491994a6
122392a202900
1310686589458
146d13bc4a76
153ad9445860
hex215c81ca90

143285930640 has 640 divisors, whose sum is σ = 528641164800. Its totient is φ = 35602882560.

The previous prime is 143285930621. The next prime is 143285930659. The reversal of 143285930640 is 46039582341.

143285930640 is a `hidden beast` number, since 14 + 3 + 2 + 8 + 593 + 0 + 6 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (143285930621) and next prime (143285930659).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 489030334 + ... + 489030626.

It is an arithmetic number, because the mean of its divisors is an integer number (826001820).

Almost surely, 2143285930640 is an apocalyptic number.

143285930640 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 143285930640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264320582400).

143285930640 is an abundant number, since it is smaller than the sum of its proper divisors (385355234160).

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

143285930640 is a wasteful number, since it uses less digits than its factorization.

143285930640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 143285930640 in words is "one hundred forty-three billion, two hundred eighty-five million, nine hundred thirty thousand, six hundred forty".