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119868661 = 1131714951
BaseRepresentation
bin1110010010100…
…00110011110101
322100112221220001
413021100303311
5221141244121
615521111301
72653603213
oct711206365
9270487801
10119868661
1161732110
1234188531
131baac203
1411cc3cb3
15a7cb991
hex7250cf5

119868661 has 16 divisors (see below), whose sum is σ = 136912896. Its totient is φ = 103950000.

The previous prime is 119868653. The next prime is 119868691. The reversal of 119868661 is 166868911.

It is a happy number.

It is not a de Polignac number, because 119868661 - 23 = 119868653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119868631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21736 + ... + 26686.

It is an arithmetic number, because the mean of its divisors is an integer number (8557056).

Almost surely, 2119868661 is an apocalyptic number.

119868661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

119868661 is a deficient number, since it is larger than the sum of its proper divisors (17044235).

119868661 is a wasteful number, since it uses less digits than its factorization.

119868661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5064.

The product of its digits is 124416, while the sum is 46.

The square root of 119868661 is about 10948.4547311481. The cubic root of 119868661 is about 493.0623992707.

The spelling of 119868661 in words is "one hundred nineteen million, eight hundred sixty-eight thousand, six hundred sixty-one".

Divisors: 1 11 31 71 341 781 2201 4951 24211 54461 153481 351521 1688291 3866731 10897151 119868661