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143390984 = 23113747937
BaseRepresentation
bin10001000101111…
…11100100001000
3100222211000110012
420202333210020
5243202002414
622121211052
73360542342
oct1042774410
9328730405
10143390984
1173a38850
1240030a88
1323926949
1415088292
15c8c633e
hex88bf908

143390984 has 64 divisors (see below), whose sum is σ = 307964160. Its totient is φ = 62000640.

The previous prime is 143390941. The next prime is 143390999. The reversal of 143390984 is 489093341.

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, 152564 + ... + 153500.

It is an arithmetic number, because the mean of its divisors is an integer number (4811940).

Almost surely, 2143390984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143390984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153982080).

143390984 is an abundant number, since it is smaller than the sum of its proper divisors (164573176).

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

143390984 is a wasteful number, since it uses less digits than its factorization.

143390984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 143390984 is about 11974.5974462610. The cubic root of 143390984 is about 523.4083117946.

The spelling of 143390984 in words is "one hundred forty-three million, three hundred ninety thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 11 22 37 44 47 74 88 94 148 188 296 376 407 517 814 937 1034 1628 1739 1874 2068 3256 3478 3748 4136 6956 7496 10307 13912 19129 20614 34669 38258 41228 44039 69338 76516 82456 88078 138676 153032 176156 277352 352312 381359 484429 762718 968858 1525436 1629443 1937716 3050872 3258886 3875432 6517772 13035544 17923873 35847746 71695492 143390984