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83145088 = 2713291723
BaseRepresentation
bin1001111010010…
…11000110000000
312210110012121201
410331023012000
5132241120323
612130030544
72026502335
oct475130600
9183405551
1083145088
1142a2a154
1223a18454
13142c1aa0
14b08498c
1574758ad
hex4f4b180

83145088 has 64 divisors (see below), whose sum is σ = 184640400. Its totient is φ = 37029888.

The previous prime is 83145071. The next prime is 83145107. The reversal of 83145088 is 88054138.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47395 + ... + 49117.

Almost surely, 283145088 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 83145088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92320200).

83145088 is an abundant number, since it is smaller than the sum of its proper divisors (101495312).

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

83145088 is a wasteful number, since it uses less digits than its factorization.

83145088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 83145088 is about 9118.3928408465. The cubic root of 83145088 is about 436.4610895136.

The spelling of 83145088 in words is "eighty-three million, one hundred forty-five thousand, eighty-eight".

Divisors: 1 2 4 8 13 16 26 29 32 52 58 64 104 116 128 208 232 377 416 464 754 832 928 1508 1664 1723 1856 3016 3446 3712 6032 6892 12064 13784 22399 24128 27568 44798 48256 49967 55136 89596 99934 110272 179192 199868 220544 358384 399736 649571 716768 799472 1299142 1433536 1598944 2598284 2867072 3197888 5196568 6395776 10393136 20786272 41572544 83145088