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109012079 = 1123342533
BaseRepresentation
bin1100111111101…
…10010001101111
321121010101110102
412133312101233
5210401341304
614452301315
72462405321
oct637662157
9247111412
10109012079
1156597430
123061183b
131977a7b7
1410699611
159884d1e
hex67f646f

109012079 has 8 divisors (see below), whose sum is σ = 119435472. Its totient is φ = 98674240.

The previous prime is 109012069. The next prime is 109012087. The reversal of 109012079 is 970210901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109012079 - 28 = 109011823 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 (109012049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18704 + ... + 23829.

It is an arithmetic number, because the mean of its divisors is an integer number (14929434).

Almost surely, 2109012079 is an apocalyptic number.

109012079 is a deficient number, since it is larger than the sum of its proper divisors (10423393).

109012079 is a wasteful number, since it uses less digits than its factorization.

109012079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42777.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 109012079 is about 10440.8849720701. The cubic root of 109012079 is about 477.7032626034.

The spelling of 109012079 in words is "one hundred nine million, twelve thousand, seventy-nine".

Divisors: 1 11 233 2563 42533 467863 9910189 109012079