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107704509 = 31131127829
BaseRepresentation
bin1100110101101…
…11000010111101
321111122221210220
412122313002331
5210033021014
614404251553
72445321213
oct632670275
9244587726
10107704509
1155883aa0
12300a0bb9
13194105a3
1410438cb3
1596c76a9
hex66b70bd

107704509 has 32 divisors (see below), whose sum is σ = 163184640. Its totient is φ = 62596800.

The previous prime is 107704489. The next prime is 107704511. The reversal of 107704509 is 905407701.

It is not a de Polignac number, because 107704509 - 25 = 107704477 is a prime.

It is a super-2 number, since 2×1077045092 = 23200522517862162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 107704509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107704529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129507 + ... + 130335.

It is an arithmetic number, because the mean of its divisors is an integer number (5099520).

Almost surely, 2107704509 is an apocalyptic number.

It is an amenable number.

107704509 is a deficient number, since it is larger than the sum of its proper divisors (55480131).

107704509 is a wasteful number, since it uses less digits than its factorization.

107704509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 107704509 is about 10378.0782903195. The cubic root of 107704509 is about 475.7856015486.

The spelling of 107704509 in words is "one hundred seven million, seven hundred four thousand, five hundred nine".

Divisors: 1 3 11 31 33 93 127 341 381 829 1023 1397 2487 3937 4191 9119 11811 25699 27357 43307 77097 105283 129921 282689 315849 848067 1158113 3263773 3474339 9791319 35901503 107704509