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107755081 = 773433487
BaseRepresentation
bin1100110110000…
…11011001001001
321111202112011221
412123003121021
5210041130311
614405322041
72445621520
oct633033111
9244675157
10107755081
1155908a95
1230106321
131942a605
141044d4b7
1596d7671
hex66c3649

107755081 has 16 divisors (see below), whose sum is σ = 125380864. Its totient is φ = 90699264.

The previous prime is 107755079. The next prime is 107755091. The reversal of 107755081 is 180557701.

It is a 11-Lehmer number, since φ(107755081) divides (107755081-1)11.

It is a cyclic number.

It is not a de Polignac number, because 107755081 - 21 = 107755079 is a prime.

It is a super-2 number, since 2×1077550812 = 23222314962633122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (107755001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221020 + ... + 221506.

It is an arithmetic number, because the mean of its divisors is an integer number (7836304).

Almost surely, 2107755081 is an apocalyptic number.

It is an amenable number.

107755081 is a deficient number, since it is larger than the sum of its proper divisors (17625783).

107755081 is an equidigital number, since it uses as much as digits as its factorization.

107755081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000.

The product of its (nonzero) digits is 9800, while the sum is 34.

The square root of 107755081 is about 10380.5144862863. The cubic root of 107755081 is about 475.8600573124.

The spelling of 107755081 in words is "one hundred seven million, seven hundred fifty-five thousand, eighty-one".

Divisors: 1 7 73 433 487 511 3031 3409 31609 35551 210871 221263 248857 1476097 15393583 107755081