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143908092 = 223229307449
BaseRepresentation
bin10001001001111…
…01110011111100
3101000210021210100
420210331303330
5243320024332
622140241100
73365125056
oct1044756374
9330707710
10143908092
1174261309
1240240190
1323a78123
14151808d6
15c97967c
hex893dcfc

143908092 has 72 divisors (see below), whose sum is σ = 378378000. Its totient is φ = 46061568.

The previous prime is 143908087. The next prime is 143908103. The reversal of 143908092 is 290809341.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320284 + ... + 320732.

It is an arithmetic number, because the mean of its divisors is an integer number (5255250).

Almost surely, 2143908092 is an apocalyptic number.

143908092 is a gapful number since it is divisible by the number (12) 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 143908092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189189000).

143908092 is an abundant number, since it is smaller than the sum of its proper divisors (234469908).

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

143908092 is a wasteful number, since it uses less digits than its factorization.

143908092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 143908092 is about 11996.1698887603. The cubic root of 143908092 is about 524.0367425627.

The spelling of 143908092 in words is "one hundred forty-three million, nine hundred eight thousand, ninety-two".

Divisors: 1 2 3 4 6 9 12 18 29 36 58 87 116 174 261 307 348 449 522 614 898 921 1044 1228 1347 1796 1842 2694 2763 3684 4041 5388 5526 8082 8903 11052 13021 16164 17806 26042 26709 35612 39063 52084 53418 78126 80127 106836 117189 137843 156252 160254 234378 275686 320508 413529 468756 551372 827058 1240587 1654116 2481174 3997447 4962348 7994894 11992341 15989788 23984682 35977023 47969364 71954046 143908092